Arrays. CS Feb 2008
|
|
- Dwight McLaughlin
- 5 years ago
- Views:
Transcription
1 Arrays CS Feb 2008
2 Announcements Exam 1 Grades on Blackboard Project 2 scores: end of Class Project 4, due date:20 th Feb Snakes & Ladders Game Review of Q5,Q8,Q11 & Programming Questions
3 Arrays: What they mean? An array is an object used to store a (possibly large) collection of data. All the data stored in the array must be of the same type. It enables you to use a single name to represent a collection of items & refer to an item by specifying the item number
4 Types of Arrays One-Dimensional Arrays int students[ 5] Multi-Dimensional arrays Simplest form is a 2-D Array int students[3 ][ 5] Example of 3-D Array int students[ 5][7 ][ 3]
5 Creating an Array Declare an array 2 forms type arrayname[ ]; Ex: int number[ ]; type [ ] arrayname; Ex: int [ ] number; Create memory location arrayname= new type[size]; Ex: number= new int[2]; Here we have created an array of type integer with 2 elements and named it as number Put values arrayname[index]=value; Ex: number[0]=35; Ex: number[1]=40;
6 Diagram: Creation of Array Statement Result int number[ ]; number points nowhere number=new int[2]; This is an array of length 2 number is a reference that points to the first memory address Memory locations number number [0] number [1]
7 Index / Subscript of Array int number [i] Here i is an integer used to refer to an element of the array number. It is called the Index Ex: number[0] : indicates the first element of number Ex: number[1] : indicates the second element of number Length: Instance Variable length is a public instance variable The length variable stores the number of elements the array can hold. Using Array_Name.length typically produces clearer code than using an integer literal.
8 Array Terminology
9 Array index out of bounds It is a runtime error which is caused by incorrect use of array index. Ex: int number[]=new int[2]; number[0]=1; number[1]=2; number[2]=17; Error : array number has just 2 elements!
10 Initializing Arrays An array can be initialized at the time it is declared. example double[] reading = {3, 3, 15.8, 9.7}; The size of the array is determined by the number of values in the initializer list.
11 Initializing Arrays, cont. Uninitialized array elements are set to the default value of the base type. However, it s better to use either an initializer list or a for loop. int[] count = new int[100]; for (int i = 0, i < count.length, i++) { } count[i] = 0;
12 Arrays in Classes & Methods Arrays can be used as instance variables in classes. Both an indexed variable of an array and an entire array can be a argument of a method. Methods can return an indexed variable of an array or an entire array.
13 Arrays in Classes & Methods class cs180class { String studentname[], firstname[]; Example public cs180class() { System.out.println("enter number of students:"); int num_students=keyboard.nextint(); firstname = new String[num_students];... studentname = setdata(firstname); } String[] setdata (String name[ ]) { String[] temp = new String [name.length]; for(int i=0; i < name.length; i++) { temp[i] = name[i]; } Array as instance variables Array as argument of a method: Call by Value } return temp; Returning an Array }
14 What about Main method? Recall the heading for method main: public static void main(string[] args) An array of String values can be provided in the command line. example java TestProgram Mary Lou args[0] is set to Mary args[1] is set to Lou System.out.println( Hello + args[0] + + args[1]); prints Hello Mary Lou.
15 Use of = & == with Arrays The assignment operator creates an alias, not a copy of the array. The equality operator determines if two references contain the same memory address, not if two arrays contain the same values.
16 Making a Copy of an Array example int[] a = new int[50]; int[] b = new int[50];... for (int j = 0; j < a.length; j++) b[j] = a[j];
17 Determining the Equality of Two Arrays To determine if two arrays at different memory locations contain the same elements in the same order, define an equals method which determines if both arrays have the same number of elements each element in the first array is the same as the corresponding element in the second array.
18 Swapping Array elements class interchange
19 Uses of Arrays Searching an element in a list of elements Sorting Ascending order Descending order Alphabetic order
20 Example: Selection Sort Selection sort begins by finding the smallest item in the array and swapping it with the item in a[0].
21 Selection Sort: class class SelectionSort
22 Multi-Dimensional Arrays 2-Dimensional Array A row & Column structure int [ ] [ ] world= new int[10][9] Indexing can be done using 2 integers: i, j world [i] [j] : refers to element at row i and column j Length : 2-D array world.length: returns the # of rows world [i].length: returns the # of columns in row i
23 2-Dimensional Array Salary information of 10 departments each having 6 employees 2-D representation double[ ][ ] Salary= new double[10][6]; Department 10, Employee 1: Salary[9][0]
24 Initialize 2-D Arrays You can initialize by nesting of loops final int MAX_ROW = 25; final int MAX_COL = 1000; double[][] experdata = new double[max_row][max_col]; int i,j; for (i = 0; i < MAX_ROW; i ++) { for (j = 0; j < MAX_COL; j ++) { experdata [i][j] = 0.0; } } 2 rows, 4 columns Alternate way: double [][] scores={ {5.3, 6.9, 8.8, 1.7}, }; {2.2, 9.4, 1.6, 7.5}
25 Ragged Arrays Since a two-dimensional array in Java is an array of arrays, each row can have a different number of elements (columns). Arrays in which rows have different numbers of elements are called ragged arrays. Example int[][] b = new int[3][]; b[0] = new int[5]; // array of 5 elements b[1] = new int[7];// array of 7 elements b[2] = new int[4]; // array of 4 elements
26 Quiz Task : print all the system.out.println statements. public class arraytest { } } public static void main(string[] args) { String[] names={"hemant", "David", "Wini","Kaku"}; System.out.println("length of the array:" + names.length); for(int i=0;i<names.length;i++) { } System.out.println(names[i]);
27 Review: Exam 1 Q5 Q5. Given the following code: double a = 1/3; double b = 1/3; double c = 1/3; double sum = a + b + c; The value of variable sum is: (a) (b) 0.0 (c) (d) 1.0 Q5. Modified Version. Given the following code: double a = 1/3; double b = 1/3; double c = 1/3; double sum = a + b + c; The value of variable sum is: All integers: 0 All floats 0.0 All doubles: 0.0
28 Review: Exam 1 Q8 What is the output of the following program fragment? String s1 = "How are you?"; String s2 = "Who are you?"; int compareval = (s1.substring(3)).compareto(s2.substring(3)) > 0? 1:0; switch (compareval) { case 1: System.out.println(s1);break; case 0: System.out.println(s2); } (a) w are you? (b) How are you? Who are you? (c) Who are you? (d) How are you? Solution: s1.substring(3)--> are you? s2.substring(3)--> are you? s1.substring(3)).compareto(s2.substring(3)-->0 Who are you? beginning index till the end of string
29 Review: Exam 1 Q11 Which of the following are true regarding String comparison (assume s1 and s2 have been declared as String)? I. The operator "==" and the method equals always return the same result II. The compareto method should be used to compare two strings instead of the operators ">" and "<" III. s1.compareto(s2) returns a negative number if s1 comes after s2 lexicographically (a) I and II only (b) I, II and III (c) II only (d) II and III only
30 Review: Exam 1 Program 1 (20 points) Write a program that prompts for a number n which indicates the number of columns and uses the number to display the following pattern (depicting n = 6 where the maximum number of X is n. X XX XXX XXXX XXXXX XXXXXX XXXXX XXXX XXX XX X
31 Review: Exam 1 Program 2 Write a program that converts a user-defined integer n to base k where k is another user defined integer. Your program should first prompt for the integer n which will be converted, then prompt for the base value k. Your program should also write the result as a string in the following format: n = result base k
32 Review: Exam 1 Program 3 Nicomachus s Theorem states that the nth cubic number n3 is a sum of n consecutive odd umbers. For example: 13 = 1 23 = = = The first term in each sequence is n(n1) + 1. Write code for: private void initialize() public int bymultiply() public int byadd()
CS5000: Foundations of Programming. Mingon Kang, PhD Computer Science, Kennesaw State University
CS5000: Foundations of Programming Mingon Kang, PhD Computer Science, Kennesaw State University Arrays A data structure for a collection of data that is all of the same data type. The data type can be
More informationArrays Chapter 6 Chapter 6 1
Arrays 1 Reminders Project 4 released: due Oct 6 @ 10:30 pm Project 1 regrades due by midnight tonight Project 2 grades posted on WebCT regrade requests due by Friday Oct 7 midnight (send to rnehme@cs.purdue.edu)
More informationArrays. Chapter 6. Array Basics Arrays in Classes and Methods Programming with Arrays and Classes Sorting Arrays Multidimensional Arrays
Chapter 6 Arrays Array Basics Arrays in Classes and Methods Programming with Arrays and Classes Sorting Arrays Multidimensional Arrays Chapter 6 Java: an Introduction to Computer Science & Programming
More informationChapter 6. Arrays. Array Basics Arrays in Classes and Methods Programming with Arrays and Classes Sorting Arrays Multidimensional Arrays
Chapter 6 Arrays Array Basics Arrays in Classes and Methods Programming with Arrays and Classes Sorting Arrays Multidimensional Arrays Chapter 6 Java: an Introduction to Computer Science & Programming
More informationArrays. Chapter 6. Array Basics Arrays in Classes and Methods Programming with Arrays and Classes Sorting Arrays Multidimensional Arrays
Chapter 6 Arrays Array Basics Arrays in Classes and Methods Programming with Arrays and Classes Sorting Arrays Multidimensional Arrays Chapter 6 Java: an Introduction to Computer Science & Programming
More informationArrays. Chapter 7 (Done right after 4 arrays and loops go together, especially for loops)
Arrays Chapter 7 (Done right after 4 arrays and loops go together, especially for loops) Object Quick Primer A large subset of Java s features are for OOP Object- Oriented Programming We ll get to that
More informationArray Basics: Outline
Array Basics: Outline More Arrays (Savitch, Chapter 7) TOPICS Array Basics Arrays in Classes and Methods Programming with Arrays Searching and Sorting Arrays Multi-Dimensional Arrays Static Variables and
More informationIntroduction to Computer Science Midterm 3 Fall, Points
Introduction to Computer Science Fall, 2001 100 Points Notes 1. Tear off this sheet and use it to keep your answers covered at all times. 2. Turn the exam over and write your name next to the staple. Do
More informationLast Class. While loops Infinite loops Loop counters Iterations
Last Class While loops Infinite loops Loop counters Iterations public class January31{ public static void main(string[] args) { while (true) { forloops(); if (checkclassunderstands() ) { break; } teacharrays();
More informationArrays and Lists CSC 121 Fall 2016 Howard Rosenthal
Arrays and Lists CSC 121 Fall 2016 Howard Rosenthal Lesson Goals Understand what an array is Understand how to declare arrays Understand what reference variables are Understand how to pass arrays to methods
More informationComputer Science is...
Computer Science is... Machine Learning Machine learning is the study of computer algorithms that improve automatically through experience. Example: develop adaptive strategies for the control of epileptic
More informationLecture 5: Arrays. A way to organize data. MIT AITI April 9th, 2005
Lecture 5: Arrays A way to organize data MIT AITI April 9th, 2005 1 What are Arrays? An array is a series of compartments to store data. Essentially a block of variables. In Java, arrays can only hold
More informationChapter 8 Multi-Dimensional Arrays
Chapter 8 Multi-Dimensional Arrays 1 1-Dimentional and 2-Dimentional Arrays In the previous chapter we used 1-dimensional arrays to model linear collections of elements. myarray: 6 4 1 9 7 3 2 8 Now think
More informationUnit 10: Sorting/Searching/Recursion
Unit 10: Sorting/Searching/Recursion Notes AP CS A Searching. Here are two typical algorithms for searching a collection of items (which for us means an array or a list). A Linear Search starts at the
More informationArray Basics: Outline. Creating and Accessing Arrays. Creating and Accessing Arrays. Arrays (Savitch, Chapter 7)
Array Basics: Outline Arrays (Savitch, Chapter 7) TOPICS Array Basics Arrays in Classes and Methods Programming with Arrays Searching and Sorting Arrays Multi-Dimensional Arrays Static Variables and Constants
More informationKingdom of Saudi Arabia Princes Nora bint Abdul Rahman University College of Computer Since and Information System CS242 ARRAYS
Kingdom of Saudi Arabia Princes Nora bint Abdul Rahman University College of Computer Since and Information System CS242 1 ARRAYS Arrays 2 Arrays Structures of related data items Static entity (same size
More informationChapter 7 Multidimensional Arrays. Liang, Introduction to Java Programming, Tenth Edition, (c) 2013 Pearson Education, Inc. All rights reserved.
Chapter 7 Multidimensional Arrays rights reserved. 1 Motivations Thus far, you have used one-dimensional arrays to model linear collections of elements. You can use a two-dimensional array to represent
More informationArray. Array Declaration:
Array Arrays are continuous memory locations having fixed size. Where we require storing multiple data elements under single name, there we can use arrays. Arrays are homogenous in nature. It means and
More informationArrays and Lists CSC 121 Fall 2015 Howard Rosenthal
Arrays and Lists CSC 121 Fall 2015 Howard Rosenthal Lesson Goals Understand what an array is Understand how to declare arrays Understand what reference variables are Understand how to pass arrays to methods
More informationArrays and Strings. Arrays - homogeneous indexed collections Selection sort as array example. String class, revisited
Arrays and Strings Arrays - homogeneous indexed collections Selection sort as array example Introduction to complexity analysis String class, revisited 1 Arrays Homogeneous collections of elements of same
More informationLAB 12: ARRAYS (ONE DIMINSION)
Statement Purpose: The purpose of this Lab. is to practically familiarize student with the concept of array and related operations performed on array. Activity Outcomes: Student will understand the concept
More informationArrays and Lists Review CSC 123 Fall 2018 Howard Rosenthal
Arrays and Lists Review CSC 123 Fall 2018 Howard Rosenthal Lesson Goals Review what an array is Review how to declare arrays Review what reference variables are Review how to pass arrays to methods Review
More informationMore on Arrays CS 16: Solving Problems with Computers I Lecture #13
More on Arrays CS 16: Solving Problems with Computers I Lecture #13 Ziad Matni Dept. of Computer Science, UCSB Announcements Homework #12 due today No homework assigned today!! Lab #7 is due on Monday,
More informationExample: Computing prime numbers
Example: Computing prime numbers -Write a program that lists all of the prime numbers from 1 to 10,000. Remember a prime number is a # that is divisible only by 1 and itself Suggestion: It probably will
More informationCS 170 Exam 2. Version: A Fall Name (as in OPUS) (print): Instructions:
CS 170 Exam 2 Version: A Fall 2015 Name (as in OPUS) (print): Section: Seat Assignment: Instructions: Keep your eyes on your own paper and do your best to prevent anyone else from seeing your work. Do
More informationSubject: Computer Science
Subject: Computer Science Topic: Data Types, Variables & Operators 1 Write a program to print HELLO WORLD on screen. 2 Write a program to display output using a single cout statement. 3 Write a program
More informationArrays: Higher Dimensional Arrays. CS0007: Introduction to Computer Programming
Arrays: Higher Dimensional Arrays CS0007: Introduction to Computer Programming Review If the == operator has two array variable operands, what is being compared? The reference variables held in the variables.
More informationCS 113 MIDTERM EXAM 2 SPRING 2013
CS 113 MIDTERM EXAM 2 SPRING 2013 There are 18 questions on this test. The value of each question is: 1-15 multiple choice (3 pts) 17 coding problem (15 pts) 16, 18 coding problems (20 pts) You may get
More informationChapter 7 Multidimensional Arrays
Chapter 7 Multidimensional Arrays 1 Motivations You can use a two-dimensional array to represent a matrix or a table. Distance Table (in miles) Chicago Boston New York Atlanta Miami Dallas Houston Chicago
More informationC++ PROGRAMMING SKILLS Part 4: Arrays
C++ PROGRAMMING SKILLS Part 4: Arrays Outline Introduction to Arrays Declaring and Initializing Arrays Examples Using Arrays Sorting Arrays: Bubble Sort Passing Arrays to Functions Computing Mean, Median
More informationUniversity of Cape Town ~ Department of Computer Science. Computer Science 1015F ~ 2007
Name: Please fill in your Student Number and Name. Student Number : Student Number: University of Cape Town ~ Department of Computer Science Computer Science 1015F ~ 2007 Final Examination Question Max
More informationLiang, Introduction to Java Programming, Eighth Edition, (c) 2011 Pearson Education, Inc. All rights reserved
1 Thus far, you have used one-dimensional arrays to model linear collections of elements. You can use a two-dimensional array to represent a matrix or a table. For example, the following table that describes
More informationIntermediate Programming
Intermediate Programming Lecture 12 Interfaces What is an Interface? A Java interface specified a set of methods that any class that implements the interfacesmust have. An Interface is a type, which means
More informationAdministration. Objects and Arrays. Objects. Agenda. What is an Object? What is a Class?
Administration Objects and Arrays CS 99 Summer 2000 Michael Clarkson Lecture 6 Read clarified grading policies Lab 6 due tomorrow Submit.java files in a folder named Lab6 Lab 7 Posted today Upson Lab closed
More informationObject Oriented Programming. Java-Lecture 6 - Arrays
Object Oriented Programming Java-Lecture 6 - Arrays Arrays Arrays are data structures consisting of related data items of the same type In Java arrays are objects -> they are considered reference types
More informationReview of Important Topics in CS1600. Functions Arrays C-strings
Review of Important Topics in CS1600 Functions Arrays C-strings Array Basics Arrays An array is used to process a collection of data of the same type Examples: A list of names A list of temperatures Why
More informationInstructor: Yu Wang 11/16/2012
CS170 SECTION 001 INTRODUCTION TO COMPUTER SCIENCE I, FALL 2012 Midterm Exam II Instructor: Yu Wang 11/16/2012 Name: Emory Alias: INSTRUCTIONS: Keep your eyes on your own paper and do your best to prevent
More informationCS 102 / CS Introduction to Programming Midterm Exam #1 - Prof. Reed Fall 2010
CS 102 / CS 107 - Introduction to Programming Midterm Exam #1 - Prof. Reed Fall 2010 What is your name?: There are two sections: I. True/False..................... 60 points; ( 30 questions, 2 points each)
More informationMcGill University School of Computer Science COMP-202A Introduction to Computing 1
McGill University School of Computer Science COMP-202A Introduction to Computing 1 Midterm Exam Thursday, October 26, 2006, 18:00-20:00 (6:00 8:00 PM) Instructors: Mathieu Petitpas, Shah Asaduzzaman, Sherif
More informationBITG 1233: Array (Part 1) LECTURE 8 (Sem 2, 17/18)
BITG 1233: Array (Part 1) LECTURE 8 (Sem 2, 17/18) 1 LEARNING OUTCOMES At the end of this lecture, you should be able to: 1. Describe the fundamentals of arrays 2. Describe the types of array: One Dimensional
More informationChapter 9 Introduction to Arrays. Fundamentals of Java
Chapter 9 Introduction to Arrays Objectives Write programs that handle collections of similar items. Declare array variables and instantiate array objects. Manipulate arrays with loops, including the enhanced
More informationESC101 : Fundamental of Computing
ESC101 : Fundamental of Computing End Semester Exam 19 November 2008 Name : Roll No. : Section : Note : Read the instructions carefully 1. You will lose 3 marks if you forget to write your name, roll number,
More informationC212 Early Evaluation Exam Mon Feb Name: Please provide brief (common sense) justifications with your answers below.
C212 Early Evaluation Exam Mon Feb 10 2014 Name: Please provide brief (common sense) justifications with your answers below. 1. What is the type (and value) of this expression: 5 * (7 + 4 / 2) 2. What
More informationSri Vidya College of Engineering & Technology
UNIT I INTRODUCTION TO OOP AND FUNDAMENTALS OF JAVA 1. Define OOP. Part A Object-Oriented Programming (OOP) is a methodology or paradigm to design a program using classes and objects. It simplifies the
More informationArrays. COMS W1007 Introduction to Computer Science. Christopher Conway 10 June 2003
Arrays COMS W1007 Introduction to Computer Science Christopher Conway 10 June 2003 Arrays An array is a list of values. In Java, the components of an array can be of any type, basic or object. An array
More informationArray Basics: Outline
Array Basics: Outline More Arrays (Savitch, Chapter 7) TOPICS Array Basics Arrays in Classes and Methods Programming with Arrays Searching and Sorting Arrays Multi-Dimensional Arrays Static Variables and
More informationArrays: An array is a data structure that stores a sequence of values of the same type. The data type can be any of Java s primitive types:
Arrays: An array is a data structure that stores a sequence of values of the same type. The data type can be any of Java s primitive types: int, short, byte, long, float, double, boolean, char The data
More informationComputer Programming C++ (wg) CCOs
Computer Programming C++ (wg) CCOs I. The student will analyze the different systems, and languages of the computer. (SM 1.4, 3.1, 3.4, 3.6) II. The student will write, compile, link and run a simple C++
More informationGive one example where you might wish to use a three dimensional array
CS 110: INTRODUCTION TO COMPUTER SCIENCE SAMPLE TEST 3 TIME ALLOWED: 60 MINUTES Student s Name: MAXIMUM MARK 100 NOTE: Unless otherwise stated, the questions are with reference to the Java Programming
More informationArrays and Lists CSC 121 Fall 2014 Howard Rosenthal
Arrays and Lists CSC 121 Fall 2014 Howard Rosenthal Lesson Goals Understand what an array is Understand how to declare arrays Understand what reference variables are Understand how to pass arrays to methods
More informationComputer Science 1 Ah
UNIVERSITY OF EDINBURGH course CS0077 COLLEGE OF SCIENCE AND ENGINEERING SCHOOL OF INFORMATICS Computer Science 1 Ah Resit Examination Specimen Solutions Date: Monday 1st September 2003 Time: 09:30 11:00
More informationCONTENTS: Array Usage Multi-Dimensional Arrays Reference Types. COMP-202 Unit 6: Arrays
CONTENTS: Array Usage Multi-Dimensional Arrays Reference Types COMP-202 Unit 6: Arrays Introduction (1) Suppose you want to write a program that asks the user to enter the numeric final grades of 350 COMP-202
More informationLast Class. Introduction to arrays Array indices Initializer lists Making an array when you don't know how many values are in it
Last Class Introduction to arrays Array indices Initializer lists Making an array when you don't know how many values are in it public class February4{ public static void main(string[] args) { String[]
More informationLesson 9: Introduction To Arrays (Updated for Java 1.5 Modifications by Mr. Dave Clausen)
Lesson 9: Introduction To Arrays (Updated for Java 1.5 Modifications by Mr. Dave Clausen) 1 Lesson 9: Introduction Objectives: To Arrays Write programs that handle collections of similar items. Declare
More information1.00 Introduction to Computers and Engineering Problem Solving. Quiz 1 March 7, 2003
1.00 Introduction to Computers and Engineering Problem Solving Quiz 1 March 7, 2003 Name: Email Address: TA: Section: You have 90 minutes to complete this exam. For coding questions, you do not need to
More informationCS101 Part 2: Practice Questions Algorithms on Arrays, Classes and Objects, String Class, Stack Class
CS1 Part 2: Algorithms on Arrays, Classes and Objects, String Class, Stack Class 1. Write a method that, given two sorted arrays of integers, merges the two arrays into a single sorted array that is returned.
More informationCS S-08 Arrays and Midterm Review 1
CS112-2012S-08 Arrays and Midterm Review 1 08-0: Arrays ArrayLists are not part of Java proper 08-1: Arrays Library class Created using lower-level Java construct: Array Arrays are like a stripped-down
More informationArray Basics: Outline
Array Basics: Outline More Arrays (Savitch, Chapter 7) TOPICS Array Basics Arrays in Classes and Methods Programming with Arrays Searching and Sorting Arrays Multi-Dimensional Arrays Static Variables and
More informationProblems with simple variables
Problems with simple variables Hard to give up values high number of variables. Complex to sort a high number of variables by value. Impossible to use loops. Example problem: Read one hundred numbers,
More informationArrays. Chapter 7. Walter Savitch Frank M. Carrano
Walter Savitch Frank M. Carrano Arrays Chapter 7 Array Basics: Outline Creating and Accessing Arrays Array Details The Instance Variable length More About Array Indices Partially-filled Arrays Working
More informationCSE 142 Su01 Final Exam Sample Solution page 1 of 7
CSE 142 Su01 Final Exam Sample Solution page 1 of 7 Answer all of the following questions. READ EACH QUESTION CAREFULLY. Answer each question in the space provided on these pages. Budget your time so you
More informationcalling a function - function-name(argument list); y = square ( z ); include parentheses even if parameter list is empty!
Chapter 6 - Functions return type void or a valid data type ( int, double, char, etc) name parameter list void or a list of parameters separated by commas body return keyword required if function returns
More informationArray Basics: Outline
Arrays Chapter 7 Array Basics: Outline Creating and Accessing Arrays Array Details The Instance Variable length More About Array Indices Partially-filled Arrays Working with Arrays Creating and Accessing
More informationLecture 17. Instructor: Craig Duckett. Passing & Returning Arrays
Lecture 17 Instructor: Craig Duckett Passing & Returning Arrays Assignment Dates (By Due Date) Assignment 1 (LECTURE 5) GRADED! Section 1: Monday, January 22 nd Assignment 2 (LECTURE 8) GRADED! Section
More informationLast Class. More on loops break continue A bit on arrays
Last Class More on loops break continue A bit on arrays public class February2{ public static void main(string[] args) { String[] allsubjects = { ReviewArray, Example + arrays, obo errors, 2darrays };
More informationFinal Exam. COMP Summer I June 26, points
Final Exam COMP 14-090 Summer I 2000 June 26, 2000 200 points 1. Closed book and closed notes. No outside material allowed. 2. Write all answers on the test itself. Do not write any answers in a blue book
More informationa) Answer all questions. b) Write your answers in the space provided. c) Show all calculations where applicable.
Name: Please fill in your Student Number and Name. Student Number : Student Number: University of Cape Town ~ Department of Computer Science Computer Science 1015F ~ 2008 January Exam Question Max Internal
More information1 Short Answer (10 Points Each)
Name: Write all of your responses on these exam pages. 1 Short Answer (10 Points Each) 1. What is the difference between a compiler and an interpreter? Also, discuss how Java accomplishes this task. 2.
More informationBITG 1113: Array (Part 1) LECTURE 8
BITG 1113: Array (Part 1) LECTURE 8 1 1 LEARNING OUTCOMES At the end of this lecture, you should be able to: 1. Describe the fundamentals of arrays 2. Describe the types of array: One Dimensional (1 D)
More informationIt is a constructor and is called using the new statement, for example, MyStuff m = new MyStuff();
COSC 117 Exam 3 Key Fall 2012 Part 1: Definitions & Short Answer (3 Points Each) 1. A method in a class that has no return type and the same name as the class is called what? How is this type of method
More informationUniversity of Palestine. Mid Exam Total Grade: 100
First Question No. of Branches (5) A) Choose the correct answer: 1. If we type: system.out.println( a ); in the main() method, what will be the result? int a=12; //in the global space... void f() { int
More informationCS 170 Exam 2. Version: A Spring Name (as in OPUS) (print): Instructions:
CS 170 Exam 2 Version: A Spring 2016 Name (as in OPUS) (print): Section: Seat Assignment: Instructions: Keep your eyes on your own paper and do your best to prevent anyone else from seeing your work. Do
More informationComputer Science & Engineering 150A Problem Solving Using Computers
Computer Science & Engineering 150A Problem Solving Using Computers Lecture 06 - Stephen Scott Adapted from Christopher M. Bourke 1 / 30 Fall 2009 Chapter 8 8.1 Declaring and 8.2 Array Subscripts 8.3 Using
More informationArrays in Java Using Arrays
Recall Length of an Array Arrays in Java Using Arrays Once an array has been created in memory, its size is fixed for the duration of its existence. Every array object has a length field whose value can
More informationProcedural Programming
Universität Duisburg-Essen PRACTICAL TRAINING TO THE LECTURE Procedural Programming Session Five: Arrays Name: First Name: Tutor: Matriculation-Number: Group-Number: Date: Prof. Dr.Ing. Axel Hunger Dipl.-Ing.
More informationAccelerating Information Technology Innovation
Accelerating Information Technology Innovation http://aiti.mit.edu Cali, Colombia Summer 2012 Lesson 04 Arrays What are Arrays? An array is a series of compartments to store data. Essentially a block of
More informationChapter 12: Arrays Think Java: How to Think Like a Computer Scientist by Allen B. Downey
Chapter 12: Arrays Think Java: How to Think Like a Computer Scientist 5.1.2 by Allen B. Downey Current Options for Storing Data 1) You need to store the room temperature, such as 62.5, in a variable. What
More informationCOSC 236 Section 101 Computer Science 1 -- Prof. Michael A. Soderstrand
COSC 236 Section 101 Computer Science 1 -- Prof. Michael A. Soderstrand COSC 236 Web Site You will always find the course material at: http://www.class-notes.us or http://www.class-notes.info or http://www.lecture-notes.tripod.com
More informationCMPS 12A - Winter 2002 Final Exam A March 16, Name: ID:
CMPS 12A - Winter 2002 Final Exam A March 16, 2002 Name: ID: This is a closed note, closed book exam. Any place where you are asked to write code, you must declare all variables that you use. However,
More informationLAB 13: ARRAYS (ONE DIMINSION)
Statement Purpose: The purpose of this Lab. is to practically familiarize student with the concept of array and related operations performed on array. Activity Outcomes: As a second Lab on Chapter 7, this
More informationMultidimensional Arrays. CSE 114, Computer Science 1 Stony Brook University
Multidimensional Arrays CSE 114, Computer Science 1 Stony Brook University http://www.cs.stonybrook.edu/~cse114 1 Multidimensional Arrays How do we represent matrices or tables? A two-dimensional array
More informationSpring 2010 Java Programming
Java Programming: Guided Learning with Early Objects Chapter 7 - Objectives Learn about arrays Explore how to declare and manipulate data in arrays Learn about the instance variable length Understand the
More informationLecture 13 & 14. Single Dimensional Arrays. Dr. Martin O Connor CA166
Lecture 13 & 14 Single Dimensional Arrays Dr. Martin O Connor CA166 www.computing.dcu.ie/~moconnor Table of Contents Declaring and Instantiating Arrays Accessing Array Elements Writing Methods that Process
More informationQuestion: Total Points: Score:
CS 170 Exam 2 Section 001 Fall 2014 Name (print): Instructions: Keep your eyes on your own paper and do your best to prevent anyone else from seeing your work. Do NOT communicate with anyone other than
More informationGabriel Hugh Elkaim Spring CMPE 013/L: C Programming. CMPE 013/L: C Programming
1 2 3 CMPE 013/L and Strings Gabriel Hugh Elkaim Spring 2013 4 Definition are variables that can store many items of the same type. The individual items known as elements, are stored sequentially and are
More informationDo not open this examination paper until instructed to do so. Section A: answer all the questions. Section B: answer all the questions.
M09/5/COMSC/SP1/ENG/TZ0/XX 22097013 Computer science Standard level Paper 1 Tuesday 19 May 2009 (afternoon) 1 hour 30 minutes INSTRUCTIONS TO CANDIDATES Do not open this examination paper until instructed
More informationModule Contact: Dr Anthony J. Bagnall, CMP Copyright of the University of East Anglia Version 2
UNIVERSITY OF EAST ANGLIA School of Computing Sciences Main Series UG Examination 2014/15 PROGRAMMING 2 CMP-5015Y Time allowed: 2 hours Answer four questions. All questions carry equal weight. Notes are
More informationINDIAN SCHOOL MUSCAT COMPUTER SCIENCE(083) CLASS XI
INDIAN SCHOOL MUSCAT COMPUTER SCIENCE(083) CLASS XI 2017-2018 Worksheet No. 1 Topic : Getting Started With C++ 1. Write a program to generate the following output: Year Profit% 2011 18 2012 27 2013 32
More informationSection 004 Spring CS 170 Exam 1. Name (print): Instructions:
CS 170 Exam 1 Section 004 Spring 2014 Name (print): Instructions: Keep your eyes on your own paper and do your best to prevent anyone else from seeing your work. Do NOT communicate with anyone other than
More informationPrinciples of Programming. Chapter 6: Arrays
Chapter 6: Arrays In this chapter, you will learn about Introduction to Array Array declaration Array initialization Assigning values to array elements Reading values from array elements Simple Searching
More informationChapter 4 - Arrays. 4.1 Introduction. Arrays Structures of related data items Static entity (same size throughout program)
Chapter - Arrays 1.1 Introduction 2.1 Introduction.2 Arrays.3 Declaring Arrays. Examples Using Arrays.5 Passing Arrays to Functions.6 Sorting Arrays. Case Study: Computing Mean, Median and Mode Using Arrays.8
More informationArrays. Eng. Mohammed Abdualal
Islamic University of Gaza Faculty of Engineering Computer Engineering Department Computer Programming Lab (ECOM 2114) Created by Eng: Mohammed Alokshiya Modified by Eng: Mohammed Abdualal Lab 9 Arrays
More informationObjectives. Order (sort) the elements of an array Search an array for a particular item Define, use multidimensional array
Arrays Chapter 7 Objectives Nature and purpose of an array Using arrays in Java programs Methods with array parameter Methods that return an array Array as an instance variable Use an array not filled
More informationVARIABLE, OPERATOR AND EXPRESSION [SET 1]
VARIABLE, OPERATOR AND EXPRESSION Question 1 Write a program to print HELLO WORLD on screen. Write a program to display the following output using a single cout statement. Subject Marks Mathematics 90
More informationChapter 4 - Arrays. 4.1 Introduction. Arrays Structures of related data items Static entity (same size throughout program) A few types
Chapter 4 - Arrays 1 4.1 Introduction 4.2 Arrays 4.3 Declaring Arrays 4.4 Examples Using Arrays 4.5 Passing Arrays to Functions 4.6 Sorting Arrays 4.7 Case Study: Computing Mean, Median and Mode Using
More informationCS126 Final Exam Review
CS126 Final Exam Review Fall 2007 1 Asymptotic Analysis (Big-O) Definition. f(n) is O(g(n)) if there exists constants c, n 0 > 0 such that f(n) c g(n) n n 0 We have not formed any theorems dealing with
More informationProblem Grade Total
CS 101, Prof. Loftin: Final Exam, May 11, 2009 Name: All your work should be done on the pages provided. Scratch paper is available, but you should present everything which is to be graded on the pages
More informationData dependent execution order data dependent control flow
Chapter 5 Data dependent execution order data dependent control flow The method of an object processes data using statements, e.g., for assignment of values to variables and for in- and output. The execution
More informationCS 112 Introduction to Computing II. Wayne Snyder Computer Science Department Boston University
9/5/6 CS Introduction to Computing II Wayne Snyder Department Boston University Today: Arrays (D and D) Methods Program structure Fields vs local variables Next time: Program structure continued: Classes
More informationCOMP-202: Foundations of Programming. Lecture 8: for Loops, Nested Loops and Arrays Jackie Cheung, Winter 2016
COMP-202: Foundations of Programming Lecture 8: for Loops, Nested Loops and Arrays Jackie Cheung, Winter 2016 Review What is the difference between a while loop and an if statement? What is an off-by-one
More information