# Expressions. Arithmetic expressions. Logical expressions. Assignment expression. n Variables and constants linked with operators

Save this PDF as:

Size: px
Start display at page:

Download "Expressions. Arithmetic expressions. Logical expressions. Assignment expression. n Variables and constants linked with operators" ## Transcription

1 Expressions 1

2 Expressions n Variables and constants linked with operators Arithmetic expressions n Uses arithmetic operators n Can evaluate to any value Logical expressions n Uses relational and logical operators n Evaluates to 1 or 0 (true or false) only Assignment expression n Uses assignment operators n Evaluates to value depending on assignment 2

3 Arithmetic Operators n Binary operators Addition: + Subtraction: Division: / Multiplication: * Modulus: % n Unary operators Plus: + Minus: Examples 2* / *25/5 7 distance / time 3.14* radius * radius a * x * x + b*x + c dividend / divisor 37 % 10 3

4 Contd. n Suppose x and y are two integer variables, whose values are 13 and 5 respectively x + y 18 x y 8 x * y 65 x / y 2 x % y 3 4

5 n All operators except % can be used with operands of all of the data types int, float, double, char (yes! char also! We will see what it means later) n % can be used only with integer operands 5

6 Type of Value of an Arithmetic Expression n If all operands of an operator are integer (int variables or integer constants), the value is always integer Example: 9/5 will be 1, not 1.8 Example: int a=9, b=5; printf( %d, a/b) will print 1 and not 1.8 6

7 n If at least one operand is real, the value is real Caution: Since floating-point values are rounded to the number of significant digits permissible, the final value is an approximation of the final result Example: 1/ 3.0 * 3.0 may have the value and not 1.0 7

8 Assignment Expression n Uses the assignment operator (=) n General syntax: variable_name = expression n Left of = is called l-value, must be a modifiable variable n Right of = is called r-value, can be any expression n Examples: velocity = 20 b = 15; temp = 12.5 A = A + 10 v = u + f * t s = u * t * f * t * t 8

9 Contd. n An assignment expression evaluates to a value same as any other expression n Value of an assignment expression is the value assigned to the l-value n Example: value of a = 3 is 3 b = 2*4 6 is 2 n = 2*u + 3*v w is whatever the arithmetic expression 2*u + 3*v w evaluates to given the current values stored in variables u, v, w 9

10 Contd. n Several variables can be assigned the same value using multiple assignment operators a = b = c = 5; flag1 = flag2 = y ; speed = flow = 0.0; n Easy to understand if you remember that the assignment expression has a value Multiple assignment operators are right-to-left associative 10

11 More Assignment Operators n +=, -=, *=, /=, %= n Operators for special type of assignments n a += b is the same as a = a + b n Same for -=, *=, /=, and %= n Exact same rules apply for multiple assignment operators 11

12 More Operators: Increment (++) and Decrement (--) n Both of these are unary operators; they operate on a single operand n The increment operator causes its operand to be increased by 1 Example: a++, ++count n The decrement operator causes its operand to be decreased by 1. Example: i--, --distance 12

13 Pre-increment versus postincrement n Operator written before the operand (++i, --i)) Called pre-increment operator (also sometimes called prefix ++ and prefix --) Operand will be altered in value before it is utilized in the program n Operator written after the operand (i++, i--) Called post-increment operator (also sometimes called postfix ++ and postfix --) Operand will be altered in value after it is utilized in the program 13

14 Contd. n Suppose x and y are two integer variables, whose values are 5 and 10 respectively. x += y x = y x *= y x /= y Stores 15 in x Evaluates to 15 Stores -5 in x Evaluates to -5 Stores 50 in x Evaluates to 50 Stores 0 in x Evaluates to 0 14

15 Type Casting n Convert a variable from one data type to another data type n Cast operator: (type_name) expression 15

16 Cont. #include <stdio.h> What is the output? int main() { int a = 25, b = 10; float result; result = a/b; printf( The result is %f\n, result); return 0; } 16

17 Cont. #include <stdio.h> What is the output? int main() { The result is int a = 25, b = 10; float result; result = a/b; printf( The result is %f\n, result); return 0; } 17

18 Cont. (Apply Type Cast) #include <stdio.h> What is the output? int main() { int a = 25, b = 10; float result; result = (float) a/b; printf( The result is %f\n, result); return 0; } 18

19 Cont. (Apply Type Cast) #include <stdio.h> What is the output? int main() { The result is int a = 25, b = 10; float result; result = (float) a/b; printf( The result is %f\n, result); return 0; } 19

20 Implicit casting n Compiler can implicitly cast the values in an expression based on the declared variable type n Implicit casting sequence priority: int -> long -> float -> double 20

21 Implicit Casting int a = 10; float b = 2.0 n The implicit type for (a*b) is float Rule: The final type of an expression is the highest priority type among all the variable types in the expression 21

22 Cont. #include <stdio.h> What is the output? int main() { int a = 25; float b = 10.0; float result; result = a/b; printf( The result is %f\n, result); return 0; } 22

23 Cont. #include <stdio.h> What is the output? int main() { The result is int a = 25; float b = 10.0; float result; result = a/b; printf( The result is %f\n, result); return 0; } 23

24 Logical Expressions n Uses relational and logical operators in addition n Informally, specifies a condition which can be true or false n Evaluates to value 0 or 1 0 implies the condition is false 1 implies the condition is true 24

25 Relational Operators n Used to compare two quantities. < is less than > is greater than <= is less than or equal to >= is greater than or equal to == is equal to!= is not equal to 25

26 Logical Expressions (count <= 100) ((math+phys+chem)/3 >= 60) ((sex == M ) && (age >= 21)) ((marks >== 80) && (marks < 90)) ((balance > 5000) (no_of_trans > 25)) (! (grade == A )) 26

27 Examples 10 > 20 is false, so value is 0 25 < 35.5 is true, so value is 1 12 > (7 + 5) is false, so value is 0 32!= 21 is true, so value is 1 n When arithmetic expressions are used on either side of a relational operator, the arithmetic expressions will be evaluated first and then the results compared a + b > c d is the same as (a+b) > (c+d) 27

28 Logical Operators Logical AND (&&) n Evalutes to 1 if both the operands are non-zero Logical OR ( ) n Result is true if at least one of the operands is non-zero X Y X && Y X Y non-0 0 non-0 non non-0 non-0 non-0 non-0 non-0 28

29 Contd n Unary negation operator (!) Single operand Value is 0 if operand is non-zero Value is 1 if operand is 0 29

30 Example n (4 > 3) && (100!= 200) 4 > 3 is true, so value 1 100!= 200 is true so value 1 Both operands 1 for &&, so final value 1 n (!10) && ( != 200) 10 is non-0, so value!10 is != 200 is true so value 1 Both operands NOT 1 for &&, so final value 0 n (!10) ( != 200) Same as above, but at least one value non-0, so final value 1 30

31 A Special Operator: AddressOf (&) n Remember that each variable is stored at a location with an unique address n Putting & before a variable name gives the address of the variable (where it is stored, not the value) n Can be put before any variable (with no blank in between) int a =10; printf( Value of a is %d, and address of a is %d\n, a, &a); 31

32 Statements in a C program n Parts of C program that tell the computer what to do n Different types Declaration statements n Declares variables etc. Assignment statement n Assignment expression, followed by a ; Control statements n For branching and looping, like if-else, for, while, dowhile (to be seen later) Input/Output n Read/print, like printf/scanf 32

33 Example Declaration statement int a, b, larger; scanf( %d %d, &a, &b); larger = b; if (a > b) larger = a; Control statement Assignment statement printf( Larger number is %d\n, larger); Input/Output statement 33

### Operators & Expressions Operators & Expressions Operator An operator is a symbol used to indicate a specific operation on variables in a program. Example : symbol + is an add operator that adds two data items called operands.

### Conditional Statement Conditional Statement 1 Logical Expressions n Uses relational and logical operators n Informally, specifies a condition which can be true or false n Evaluates to value 0 or 1 0 implies the condition is

### Programming and Data Structures Programming and Data Structures Teacher: Sudeshna Sarkar sudeshna@cse.iitkgp.ernet.in Department of Computer Science and Engineering Indian Institute of Technology Kharagpur #include int main()

### Outline. Performing Computations. Outline (cont) Expressions in C. Some Expression Formats. Types for Operands Performing Computations C provides operators that can be applied to calculate expressions: tax is 8.5% of the total sale expression: tax = 0.085 * totalsale Need to specify what operations are legal, how

### Chapter 4: Basic C Operators Chapter 4: Basic C Operators In this chapter, you will learn about: Arithmetic operators Unary operators Binary operators Assignment operators Equalities and relational operators Logical operators Conditional

### Unit 3. Operators. School of Science and Technology INTRODUCTION INTRODUCTION Operators Unit 3 In the previous units (unit 1 and 2) you have learned about the basics of computer programming, different data types, constants, keywords and basic structure of a C program.

### Operators and Expressions: Operators and Expressions: Operators and expression using numeric and relational operators, mixed operands, type conversion, logical operators, bit operations, assignment operator, operator precedence

### Fundamentals of Programming Session 7 Fundamentals of Programming Session 7 Instructor: Reza Entezari-Maleki Email: entezari@ce.sharif.edu 1 Fall 2014 These slides have been created using Deitel s slides Sharif University of Technology Outlines

### Character Set. The character set of C represents alphabet, digit or any symbol used to represent information. Digits 0, 1, 2, 3, 9 Character Set The character set of C represents alphabet, digit or any symbol used to represent information. Types Uppercase Alphabets Lowercase Alphabets Character Set A, B, C, Y, Z a, b, c, y, z Digits

### A complex expression to evaluate we need to reduce it to a series of simple expressions. E.g * 7 =>2+ 35 => 37. E.g. 1.3a Expressions Expressions An Expression is a sequence of operands and operators that reduces to a single value. An operator is a syntactical token that requires an action be taken An operand is an object

### Operators and Expressions in C & C++ Mahesh Jangid Assistant Professor Manipal University, Jaipur Operators and Expressions in C & C++ Mahesh Jangid Assistant Professor Manipal University, Jaipur Operators and Expressions 8/24/2012 Dept of CS&E 2 Arithmetic operators Relational operators Logical operators

### Operators And Expressions Operators And Expressions Operators Arithmetic Operators Relational and Logical Operators Special Operators Arithmetic Operators Operator Action Subtraction, also unary minus + Addition * Multiplication

### In Fig. 3.5 and Fig. 3.7, we include some completely blank lines in the pseudocode for readability. programs into their various phases. Formulating Algorithms with Top-Down, Stepwise Refinement Case Study 2: Sentinel-Controlled Repetition In Fig. 3.5 and Fig. 3.7, we include some completely blank lines in the pseudocode for readability.

### GO - OPERATORS. This tutorial will explain the arithmetic, relational, logical, bitwise, assignment and other operators one by one. http://www.tutorialspoint.com/go/go_operators.htm GO - OPERATORS Copyright tutorialspoint.com An operator is a symbol that tells the compiler to perform specific mathematical or logical manipulations.

### Arithmetic Operators. Portability: Printing Numbers Arithmetic Operators Normal binary arithmetic operators: + - * / Modulus or remainder operator: % x%y is the remainder when x is divided by y well defined only when x > 0 and y > 0 Unary operators: - +

### Lecture 3. More About C Copyright 1996 David R. Hanson Computer Science 126, Fall 1996 3-1 Lecture 3. More About C Programming languages have their lingo Programming language Types are categories of values int, float, char Constants

### The Arithmetic Operators. Unary Operators. Relational Operators. Examples of use of ++ and The Arithmetic Operators The arithmetic operators refer to the standard mathematical operators: addition, subtraction, multiplication, division and modulus. Op. Use Description + x + y adds x and y x y

### The Arithmetic Operators The Arithmetic Operators The arithmetic operators refer to the standard mathematical operators: addition, subtraction, multiplication, division and modulus. Examples: Op. Use Description + x + y adds x

### Will introduce various operators supported by C language Identify supported operations Present some of terms characterizing operators Operators Overview Will introduce various operators supported by C language Identify supported operations Present some of terms characterizing operators Operands and Operators Mathematical or logical relationships

### 3. EXPRESSIONS. It is a sequence of operands and operators that reduce to a single value. 3. EXPRESSIONS It is a sequence of operands and operators that reduce to a single value. Operator : It is a symbolic token that represents an action to be taken. Ex: * is an multiplication operator. Operand:

### Computer System and programming in C 1 Basic Data Types Integral Types Integers are stored in various sizes. They can be signed or unsigned. Example Suppose an integer is represented by a byte (8 bits). Leftmost bit is sign bit. If the sign

### Chapter 3. Section 3.10 Type of Expressions and Automatic Conversion. CS 50 Hathairat Rattanasook Chapter 3 Section 3.10 Type of Expressions and Automatic Conversion CS 50 Hathairat Rattanasook Types of Expressions and Automatic Conversions In C, every expression has an associated type. Operators and

### Introduction. Following are the types of operators: Unary requires a single operand Binary requires two operands Ternary requires three operands Introduction Operators are the symbols which operates on value or a variable. It tells the compiler to perform certain mathematical or logical manipulations. Can be of following categories: Unary requires

### Expressions and Statementst t. Assignment Operator. C Programming Lecture 6 : Operators. Expression Expressions and Statementst t Expression C Programming Lecture 6 : Operators Combination of constants,variables,operators, operators and function calls a+b 3.0*x 9.66553 tan(angle) Statement An expression

### Chapter 3 Structured Program Development in C Part II Chapter 3 Structured Program Development in C Part II C How to Program, 8/e, GE 2016 Pearson Education, Ltd. All rights reserved. 1 3.7 The while Iteration Statement An iteration statement (also called

### CSE101-lec#12. Designing Structured Programs Introduction to Functions. Created By: Amanpreet Kaur & Sanjeev Kumar SME (CSE) LPU CSE101-lec#12 Designing Structured Programs Introduction to Functions Created By: Amanpreet Kaur & Sanjeev Kumar SME (CSE) LPU Outline Designing structured programs in C: Counter-controlled repetition

### CSE 1001 Fundamentals of Software Development 1. Identifiers, Variables, and Data Types Dr. H. Crawford Fall 2018 CSE 1001 Fundamentals of Software Development 1 Identifiers, Variables, and Data Types Dr. H. Crawford Fall 2018 Identifiers, Variables and Data Types Reserved Words Identifiers in C Variables and Values

### Chapter 3: Operators, Expressions and Type Conversion 101 Chapter 3 Operators, Expressions and Type Conversion Chapter 3: Operators, Expressions and Type Conversion Objectives To use basic arithmetic operators. To use increment and decrement operators. To

### LESSON 1. A C program is constructed as a sequence of characters. Among the characters that can be used in a program are: LESSON 1 FUNDAMENTALS OF C The purpose of this lesson is to explain the fundamental elements of the C programming language. C like other languages has all alphabet and rules for putting together words

### A flow chart is a graphical or symbolic representation of a process. Q1. Define Algorithm with example? Answer:- A sequential solution of any program that written in human language, called algorithm. Algorithm is first step of the solution process, after the analysis of

### Information Science 1 Information Science 1 Simple Calcula,ons Week 09 College of Information Science and Engineering Ritsumeikan University Topics covered l Terms and concepts from Week 8 l Simple calculations Documenting

### Computer Programming CS F111 Computer Programming CS F111 BITS Pilani Dubai Campus NAND KUMAR Basics of C Programming BITS Pilani Dubai Campus Write a program that 1. Asks 5 marks from the user, find the average of the marks and print

### Data Types and Variables in C language Data Types and Variables in C language Disclaimer The slides are prepared from various sources. The purpose of the slides is for academic use only Operators in C C supports a rich set of operators. Operators

### COMP Primitive and Class Types. Yi Hong May 14, 2015 COMP 110-001 Primitive and Class Types Yi Hong May 14, 2015 Review What are the two major parts of an object? What is the relationship between class and object? Design a simple class for Student How to

### Information Science 1 Topics covered Information Science 1 Terms and concepts from Week 8 Simple calculations Documenting programs Simple Calcula,ons Expressions Arithmetic operators and arithmetic operator precedence Mixed-type

### By the end of this section you should: Understand what the variables are and why they are used. Use C++ built in data types to create program 1 By the end of this section you should: Understand what the variables are and why they are used. Use C++ built in data types to create program variables. Apply C++ syntax rules to declare variables, initialize

### Fundamental of Programming (C) Borrowed from lecturer notes by Omid Jafarinezhad Fundamental of Programming (C) Lecturer: Vahid Khodabakhshi Lecture 3 Constants, Variables, Data Types, And Operations Department of Computer Engineering

### UNIT 3 OPERATORS. [Marks- 12] 1 UNIT 3 OPERATORS [Marks- 12] SYLLABUS 2 INTRODUCTION C supports a rich set of operators such as +, -, *,,

### Basics of Programming Unit 2 Basics of Programming Problem Analysis When we are going to develop any solution to the problem, we must fully understand the nature of the problem and what we want the program to do. Without the

### Programming in C++ 5. Integral data types Programming in C++ 5. Integral data types! Introduction! Type int! Integer multiplication & division! Increment & decrement operators! Associativity & precedence of operators! Some common operators! Long

### These are reserved words of the C language. For example int, float, if, else, for, while etc. Tokens in C Keywords These are reserved words of the C language. For example int, float, if, else, for, while etc. Identifiers An Identifier is a sequence of letters and digits, but must start with a letter.

### C Language Part 1 Digital Computer Concept and Practice Copyright 2012 by Jaejin Lee C Language Part 1 (Minor modifications by the instructor) References C for Python Programmers, by Carl Burch, 2011. http://www.toves.org/books/cpy/ The C Programming Language. 2nd ed., Kernighan, Brian,

### Operators and Type Conversion. By Avani M. Sakhapara Assistant Professor, IT Dept, KJSCE Operators and Type Conversion By Avani M. Sakhapara Assistant Professor, IT Dept, KJSCE Introduction An operator is a symbol which represents a particular operation that can be performed on some data.

### Fundamentals of Programming Fundamentals of Programming Lecture 3 - Constants, Variables, Data Types, And Operations Lecturer : Ebrahim Jahandar Borrowed from lecturer notes by Omid Jafarinezhad Outline C Program Data types Variables

### Sir Muhammad Naveed. Arslan Ahmed Shaad ( ) Muhammad Bilal ( ) Sir Muhammad Naveed Arslan Ahmed Shaad (1163135 ) Muhammad Bilal ( 1163122 ) www.techo786.wordpress.com CHAPTER: 2 NOTES:- VARIABLES AND OPERATORS The given Questions can also be attempted as Long Questions.

### Programming for Engineers Iteration Programming for Engineers Iteration ICEN 200 Spring 2018 Prof. Dola Saha 1 Data type conversions Grade average example,-./0 class average = 23450-67 893/0298 Grade and number of students can be integers

### Operators. Java operators are classified into three categories: Operators Operators are symbols that perform arithmetic and logical operations on operands and provide a meaningful result. Operands are data values (variables or constants) which are involved in operations.

### Overview of C, Part 2. CSE 130: Introduction to Programming in C Stony Brook University Overview of C, Part 2 CSE 130: Introduction to Programming in C Stony Brook University Integer Arithmetic in C Addition, subtraction, and multiplication work as you would expect Division (/) returns the

### LECTURE 3 C++ Basics Part 2 LECTURE 3 C++ Basics Part 2 OVERVIEW Operators Type Conversions OPERATORS Operators are special built-in symbols that have functionality, and work on operands. Operators are actually functions that use

### Review: Exam 1. Your First C++ Program. Declaration Statements. Tells the compiler. Examples of declaration statements Review: Exam 1 9/20/06 CS150 Introduction to Computer Science 1 1 Your First C++ Program 1 //*********************************************************** 2 // File name: hello.cpp 3 // Author: Shereen Khoja

### 1.3b Type Conversion 1.3b Type Conversion Type Conversion When we write expressions involved data that involves two different data types, such as multiplying an integer and floating point number, we need to perform a type

### Basic operators, Arithmetic, Relational, Bitwise, Logical, Assignment, Conditional operators. JAVA Standard Edition Basic operators, Arithmetic, Relational, Bitwise, Logical, Assignment, Conditional operators JAVA Standard Edition Java - Basic Operators Java provides a rich set of operators to manipulate variables.

### Le L c e t c ur u e e 2 To T p o i p c i s c t o o b e b e co c v o e v r e ed e Variables Operators Course Name: Advanced Java Lecture 2 Topics to be covered Variables Operators Variables -Introduction A variables can be considered as a name given to the location in memory where values are stored. One

### Computers Programming Course 6. Iulian Năstac Computers Programming Course 6 Iulian Năstac Recap from previous course Data types four basic arithmetic type specifiers: char int float double void optional specifiers: signed, unsigned short long 2 Recap

### DEPARTMENT OF MATHS, MJ COLLEGE T. Y. B.Sc. Mathematics MTH- 356 (A) : Programming in C Unit 1 : Basic Concepts Syllabus : Introduction, Character set, C token, Keywords, Constants, Variables, Data types, Symbolic constants, Over flow,

### Expression and Operator Expression and Operator Examples: Two types: Expressions and Operators 3 + 5; x; x=0; x=x+1; printf("%d",x); Function calls The expressions formed by data and operators An expression in C usually has a

### Informatica e Sistemi in Tempo Reale Informatica e Sistemi in Tempo Reale Introduction to C programming Giuseppe Lipari http://retis.sssup.it/~lipari Scuola Superiore Sant Anna Pisa October 5, 2011 G. Lipari (Scuola Superiore Sant Anna) Introduction

### Unit-2 (Operators) ANAND KR.SRIVASTAVA Unit-2 (Operators) ANAND KR.SRIVASTAVA 1 Operators in C ( use of operators in C ) Operators are the symbol, to perform some operation ( calculation, manipulation). Set of Operations are used in completion

### Fundamentals of Programming Fundamentals of Programming Introduction to the C language Giuseppe Lipari http://retis.sssup.it/~lipari Scuola Superiore Sant Anna Pisa February 29, 2012 G. Lipari (Scuola Superiore Sant Anna) The C language

### MA 511: Computer Programming Lecture 3: Partha Sarathi Mandal MA 511: Computer Programming Lecture 3: http://www.iitg.ernet.in/psm/indexing_ma511/y10/index.html Partha Sarathi Mandal psm@iitg.ernet.ac.in Dept. of Mathematics, IIT Guwahati Semester 1, 2010-11 Last

### Module 2 - Part 2 DATA TYPES AND EXPRESSIONS 1/15/19 CSE 1321 MODULE 2 1 Module 2 - Part 2 DATA TYPES AND EXPRESSIONS 1/15/19 CSE 1321 MODULE 2 1 Topics 1. Expressions 2. Operator precedence 3. Shorthand operators 4. Data/Type Conversion 1/15/19 CSE 1321 MODULE 2 2 Expressions

### BRANCHING if-else statements BRANCHING if-else statements Conditional Statements A conditional statement lets us choose which statement t t will be executed next Therefore they are sometimes called selection statements Conditional

### Declaration and Memory Declaration and Memory With the declaration int width; the compiler will set aside a 4-byte (32-bit) block of memory (see right) The compiler has a symbol table, which will have an entry such as Identifier

### Prepared by: Shraddha Modi Prepared by: Shraddha Modi Introduction Operator: An operator is a symbol that tells the Computer to perform certain mathematical or logical manipulations. Expression: An expression is a sequence of operands

### Chapter 4 Homework Individual/Team (1-2 Persons) Assignment 15 Points All of the work in this project is my own! I have not left copies of my code in public folders on university computers. I have not given any of this project to others. I will not give any portion of this

### Chapter 2: Using Data Chapter 2: Using Data Declaring Variables Constant Cannot be changed after a program is compiled Variable A named location in computer memory that can hold different values at different points in time

### CS313D: ADVANCED PROGRAMMING LANGUAGE CS313D: ADVANCED PROGRAMMING LANGUAGE Computer Science department Lecture 2 : C# Language Basics Lecture Contents 2 The C# language First program Variables and constants Input/output Expressions and casting

### ANSI C Programming Simple Programs ANSI C Programming Simple Programs /* This program computes the distance between two points */ #include #include #include main() { /* Declare and initialize variables */ double

### Chapter 3 Structure of a C Program Chapter 3 Structure of a C Program Objectives To be able to list and describe the six expression categories To understand the rules of precedence and associativity in evaluating expressions To understand

### JAVA OPERATORS GENERAL JAVA OPERATORS GENERAL Java provides a rich set of operators to manipulate variables. We can divide all the Java operators into the following groups: Arithmetic Operators Relational Operators Bitwise Operators

### Reserved Words and Identifiers 1 Programming in C Reserved Words and Identifiers Reserved word Word that has a specific meaning in C Ex: int, return Identifier Word used to name and refer to a data element or object manipulated by the

### Structures, Operators Structures Typedef Operators Type conversion Structures, Operators Basics of Programming 1 G. Horváth, A.B. Nagy, Z. Zsóka, P. Fiala, A. Vitéz 10 October, 2018 c based on slides by Zsóka, Fiala, Vitéz

### Variables and Operators 2/20/01 Lecture # Variables and Operators 2/20/01 Lecture #6 16.070 Variables, their characteristics and their uses Operators, their characteristics and their uses Fesq, 2/20/01 1 16.070 Variables Variables enable you to

### Basic Assignment and Arithmetic Operators C Programming 1 Basic Assignment and Arithmetic Operators C Programming 2 Assignment Operator = int count ; count = 10 ; The first line declares the variable count. In the second line an assignment operator

### ISA 563 : Fundamentals of Systems Programming ISA 563 : Fundamentals of Systems Programming Variables, Primitive Types, Operators, and Expressions September 4 th 2008 Outline Define Expressions Discuss how to represent data in a program variable name

### UNIT- 3 Introduction to C++ UNIT- 3 Introduction to C++ C++ Character Sets: Letters A-Z, a-z Digits 0-9 Special Symbols Space + - * / ^ \ ( ) [ ] =!= . \$, ; : %! &? _ # = @ White Spaces Blank spaces, horizontal tab, carriage

### Basics of Java Programming Basics of Java Programming Lecture 2 COP 3252 Summer 2017 May 16, 2017 Components of a Java Program statements - A statement is some action or sequence of actions, given as a command in code. A statement

### Fundamentals of Programming CS-110. Lecture 3 Fundamentals of Programming CS-110 Lecture 3 Operators Operators Operators are words or symbols that cause a program to do something to variables. OPERATOR TYPES: Type Operators Usage Arithmetic + - *

### Week 2 Introduction to Computer and Algorithm (Part 2) Week 2 Introduction to Computer and Algorithm (Part 2) UniMAP Sem II-11/12 DKT121 1 Outline Pseudo code & flowchart Sample programming question Sample C program Identifiers and reserved words Program comments

### Overview (4) CPE 101 mod/reusing slides from a UW course. Assignment Statement: Review. Why Study Expressions? D-1 CPE 101 mod/reusing slides from a UW course Overview (4) Lecture 4: Arithmetic Expressions Arithmetic expressions Integer and floating-point (double) types Unary and binary operators Precedence Associativity

### First of all, it is a variable, just like other variables you studied Pointers: Basics What is a pointer? First of all, it is a variable, just like other variables you studied So it has type, storage etc. Difference: it can only store the address (rather than the value)

### C: How to Program. Week /Mar/05 1 C: How to Program Week 2 2007/Mar/05 Chapter 2 - Introduction to C Programming 2 Outline 2.1 Introduction 2.2 A Simple C Program: Printing a Line of Text 2.3 Another Simple C Program: Adding Two Integers

### Java enum, casts, and others (Select portions of Chapters 4 & 5) Enum or enumerates types Java enum, casts, and others (Select portions of Chapters 4 & 5) Sharma Chakravarthy Information Technology Laboratory (IT Lab) Computer Science and Engineering Department The

### COP 2000 Introduction to Computer Programming Mid-Term Exam Review he exam format will be different from the online quizzes. It will be written on the test paper with questions similar to those shown on the following pages. he exam will be closed book, but students can

### Announcements. Lab Friday, 1-2:30 and 3-4:30 in Boot your laptop and start Forte, if you brought your laptop Announcements Lab Friday, 1-2:30 and 3-4:30 in 26-152 Boot your laptop and start Forte, if you brought your laptop Create an empty file called Lecture4 and create an empty main() method in a class: 1.00

### SECTION II: LANGUAGE BASICS Chapter 5 SECTION II: LANGUAGE BASICS Operators Chapter 04: Basic Fundamentals demonstrated declaring and initializing variables. This chapter depicts how to do something with them, using operators. Operators

### C/Java Syntax. January 13, Slides by Mark Hancock (adapted from notes by Craig Schock) C/Java Syntax 1 Lecture 02 Summary Keywords Variable Declarations Data Types Operators Statements if, switch, while, do-while, for Functions 2 By the end of this lecture, you will be able to identify the

### C/Java Syntax. Lecture 02 Summary. Keywords Variable Declarations Data Types Operators Statements. Functions. if, switch, while, do-while, for C/Java Syntax 1 Lecture 02 Summary Keywords Variable Declarations Data Types Operators Statements if, switch, while, do-while, for Functions 2 1 By the end of this lecture, you will be able to identify

### Dept. of CSE, IIT KGP Control Flow: Looping CS10001: Programming & Data Structures Pallab Dasgupta Professor, Dept. of Computer Sc. & Engg., Indian Institute of Technology Kharagpur Types of Repeated Execution Loop: Group of

### Writing Program in C Expressions and Control Structures (Selection Statements and Loops) Writing Program in C Expressions and Control Structures (Selection Statements and Loops) Jan Faigl Department of Computer Science Faculty of Electrical Engineering Czech Technical University in Prague

### Part I Part 1 Expressions Writing Program in C Expressions and Control Structures (Selection Statements and Loops) Jan Faigl Department of Computer Science Faculty of Electrical Engineering Czech Technical University in Prague

### Day05 A. Young W. Lim Sat. Young W. Lim Day05 A Sat 1 / 14 Day05 A Young W. Lim 2017-10-07 Sat Young W. Lim Day05 A 2017-10-07 Sat 1 / 14 Outline 1 Based on 2 Structured Programming (2) Conditions and Loops Conditional Statements Loop Statements Type Cast Young

### Chapter 4: Expressions. Chapter 4. Expressions. Copyright 2008 W. W. Norton & Company. All rights reserved. Chapter 4: Expressions Chapter 4 Expressions 1 Chapter 4: Expressions Operators Expressions are built from variables, constants, and operators. C has a rich collection of operators, including arithmetic

### Chapter 4 Expression & Operators Chapter 4 Expression & Operators 1 Aim To give understanding on: Expression and operator concept math.h and stdlib.h built-in function Objective Students should be able to: understand concepts and fundamentals ECE3411 Fall 2015 Lecture 1a. Course Outline Introduction to C-Programming Marten van Dijk, Syed Kamran Haider Department of Electrical & Computer Engineering University of Connecticut Email: {vandijk, Lecture 3 Tao Wang 1 Objectives In this chapter, you will learn about: Arithmetic operations Variables and declaration statements Program input using the cin object Common programming errors C++ for Engineers