GUJARAT TECHNOLOGICAL UNIVERSITY Diploma Semester V th Examination December

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1 Seat No.: Enrolment No. GUJRT TECHNOLOGICL UNIVERSITY Diploma Semester V th Examination December Date: 28 /12 /2010 Subject code: 3503 Subject Name: Java Programming Instructions: 1. ttempt all questions. 2. Make suitable assumptions wherever necessary. 3. Figures to the right indicate full marks. 4. English version is uthentic Time: pm pm Total Marks: 70 Q.1 (a) Discuss the features of Java Programming Language. (b) Explain different Java Control Statements with example. Q.2 (a) (1) Explain the structure of Java Program with example. 04 (2) Explain the task of main() method in Java Programming Language. 03 (b) (1) Explain the difference between abstract class and final class. 04 (2) What is Wrapper Class? Explain the use of Wrapper Class with example. 03 (b) What is Vector? How it differs from the array? Explain array and vector with example. Q.3 (a) What is Bytecode? Explain the JVM concept in Java Programming Language. (b) List out the different important Java Packages and explain it. Q.3 (a) What is Inheritance? Explain the different forms of Inheritance with example. Explain the use of super keyword. (b) Discuss the similarities and differences between Class and Interface with example. Q.4 (a) What is Package? Write the steps to create the package with example. (b) Explain the difference between String Class and StringBuffer Class with example. Q. 4 (a) What is Thread? Explain the Life Cycle of a Thread. (b) Explain the difference between Web pplet and Stand-alone application. Q.5 (a) (1) Write a Java Program to display the 10 (ten) citynames using the 03 command-line arguments (2) Write a Java Program to create a class student having following data 04 members : rollno, name, sub1, sub2, sub3. Display the rollno, name, marks, total marks of student. (b) Write a Java Program to arrange 10 (ten) employee names in ascending order. Q.5 (a) Define an Exception called NoMatchException that is thrown when a string is not equal to India. Write a Java Program that uses this exception. (b) Develop an applet that receives two numeric values as input from the user and then display the sum of the two numbers on the screen. Write a HTML page and test the applet. ********* 1

2 5 `Gv! V વ મ ગ લ વ ઝન ફ ચ ન ચચ કર. વ ન દ દ ક લ ટ મ ટ ઉદ હરણ આપ 5 `GvZ V (1) વ મ ગ લ વ ઝ ચર ઉદ હરણ આપ 0 (2) વ મ ગ લ વ ઝમ મ ઇન મ થડ ક મ (1) એ ટ લ સ અન ફ ઇનલ કલ સ વ ચ ન તફ વત 0 (2) રપર લ સ એ લ? રપર લ સન ઉપય ગ ઉદ હરણ આપ વ ટર એ લ? વ ટર કઇ ર ત એર થ દ પડ છ ઉદ હરણ આપ? એર અન વ ટર V બ યટ ક ડ એ લ? વ મ ગ લ વ ઝમ વ મ ન ક સ ટ દ દ અગ યન વ ન પ કઝ ન ય દ લખ અન ત ન V ઇ હર ટ સ એ લ? ઇ હર ટ સન દ દ ફ મ ન ઉદ હરણ આપ પર ક વડ ન ઉપય ગ લખ. કલ સ અન ફસ વ ચ ન સ યત અન દ પ ઉદ હરણ આપ V પ ક એ લ? પ ક ય ટ કરવ મ ટન ટ સ ઉદ હરણ આપ લખ. ગ લ સ અન ગબફર લ સ વ ચ દ પ ઉદ હરણ આપ V એ લ? ન લ ઇફ સ ય લ વ બ એ લ ટ અન ટડ એ લ કશન વ ચ દ પ ઉદ હરણ આપ V (1) મ ડ-લ ઇન આર મ ટન મદદન 10 (દસ) સ ટ ન ન મ દ શત કરવ મ ટન વ મ લખ. (2) ન ચ ન ડટ મ બસ ય ટ કરવ મ ટ એક ટ ન મ ન કલ બન વ વ મ મ લખ. ડટ મ બસ : ર લ ન બર, ન મ, સ ટ 1, સ ટ 2, સ ટ 2. ર લ ન બર, ન મ, મ સ તથ ટ ટ લ દ શત કર. દસ (10) એ લ ય ન ન મ ચઢત મ મ ગ વવ મ ટ ન વ મ લખ. V ન મ ચ એ સ સન ન મ એ સ સન ડ ફઇન કર ક ગ બર બર ઇ ડય ન થ ય ય ર થ ય. આ એ સ સન ઉપય ગ કર ન વ ન મ લખ. એક એ લ ટ ડ વલપ કર ક ઝર પ સ થ બ ન બર ઇન ટ કર અન બ ન બર ન સરવ ળ ન પર દ શત કર. એચટ એમલ વ બ પ ઇઝ બન વ અન અ લ ટ ન ટ ટ કર. 2 0

3 Seat No.: Enrolment No. GUJRT TECHNOLOGICL UNIVERSITY DIPLOM ENGINEERING - SEMESTER V EXMINTION WINTER 2013 Subject Code: 3503 Date: Subject Name: Java Programming Time: 02:30 pm - 05:00 pm Total Marks: 70 Instructions: 1. ttempt all questions. 2. Make suitable assumptions wherever necessary. 3. Figures to the right indicate full marks. 4. English version is considered to be uthentic. Q.1 (a) What is JVM? Explain in brief the structure of a java program. (b) List the features of java. Differentiate between java and c++. Q.2 (a) What is method overloading & overriding? explain with example (b) List the types of operators available in java. Explain rithmetic and Bitwise operators. (b) What is command line-arguments? Write a program to sum two numbers using command line arguments. Q.3 (a) What is interface? Differentiate between abstract class and interface. Write a program for calculator interface. (b) What is multithreading? Explain the life cycle of a thread. Q.3 (a) Define inheritance. List types of inheritance. Explain with example. (b) What is inner class? Explain in brief. Q.4 (a) Give difference between string and string buffer class, Explain any three methods of string class (b) Explain visibility controls of java. Q. 4 (a) What is Exception? Write a program that show the use of rithmeticexception. (b) What is an abstract class? What is a final class? Differentiate between abstract and final class. Q.5 (a) What is java PI? List any five packages in java. Write steps to develop a package. (b) What is an applet? Write a program to draw a rectangle and circle within it using applet. Q.5 (a) Write a program to sort an array of five numbers. (b) Write a program that demonstrate the use of static method. 1/2

4 5 `Gv! V JVM એટલ? વ ન મ ચર વ ન લ ણ કત જણ વ. વ અન c++ વ ચ ન તફ વત 5 `GvZ V મ થડ ઓવરલ ડ અન મ થડ ઓવરર ઈડ એટલ?. ય ય ઉદ હરણ સ થ વ ન ઓપર ટર જણ વ. એર થમ ટ ક અન બ ટવ ઈઝ ઓપર ટર કમ લ ઈન આ મ ટ એટલ? કમ લ ઈન આ મ ટન ઉપય ગ કર ન બ ન બરન સરવ ળ કરવ ન મ લખ. V Interface એટલ? ઍબ ટ ટ લ સ અન ટરફ સ વ ચ ન તફ વત ક ક લ ટરન ટરફ સન મ લખ. મ ટ ડ ગ એટલ? ડન લ ઈફ સ ઈકલ સમ વ V ઈનહ ર ટ સ એટલ? ઈનહ ર ટ સન ક ર જણ વ. ય ય ઉદ હરણ સ થ ઈનર લ સ એટલ? કમ V ગ અન ગબફર લ સ વ ચ ન તફ વત ગ લ સન ણ મ થડ વ ન વ બ લ ટ ક ટ લ V એ પશન એટલ? એર થમ ટ ક એ પશન ય ય ઉદ હરણ સ થ ઍબ ટ ટ લ સ એટલ? ફ ઈનલ લ સ એટલ?. ઍબ ટ ટ લ સ અન ફ ઈનલ લ સ વ ચ ન તફ વત V વ PI એટલ? વ ન પ ચ પ ક જન ન મ લખ. વ મ પ ક જ ક વ ર ત કર ત ન ટ પ લખ. એપલ ટ એટલ? ર કટ લન દર સક લ દ રવ ન મ લખ. V પ ચ ન બરન એર ન સ કરવ ન મ લખ. ટ ટ ક મ થડન ઉપય ગ બત વત મ લખ. ********* 2/2

5 Seat No.: Enrolment No. GUJRT TECHNOLOGICL UNIVERSITY Diploma Engineering - SEMESTER V EXMINTION SUMMER 2013 Subject Code: 3503 Date: Subject Name: Java Programming Time: 10:30 am - 01:00 pm Total Marks: 70 Instructions: 1. ttempt all questions. 2. Make suitable assumptions wherever necessary. 3. Figures to the right indicate full marks. 4. English version is considered to be uthentic. Q.1 (a) List main features of Java Language. Explain any three. (b) What is an applet? Explain following methods: (1) Init (2) paint (3) repaint Q.2 (a) What are differences between a class and an interface? Explain by giving suitable example. (b) Design a class to represent a bank account. Include methods to deposit, withdraw and display balance. Use the concept of constructor overloading. (b) Create a class rectangle which contains a method to find out the area and perimeter of the rectangle. Create a subclass square and override the methods of the base class. In main method, create the objects of both classes and display the area and perimeter. Q.3 (a) How Vector class differs from an array? List some methods of Vector class and explain any two. (b) List seven method of string class. Explain any three with example. Q.3 (a) Write an application that creates and starts five threads. Each thread is instantiated from the same class. It executes a loop with ten iterations. Each iteration displays the character x and sleeps for 300 milliseconds. (b) Define an exception Out of Range that is thrown when a number is not in the range of 1 to 10. Write a program that uses this exception. Q.4 (a) For what purposes is final keyword used? Explain each use with example. (b) Explain Package and CLSSPTH variable. List Java s built-in packages. Q. 4 (a) Write a program that reads 7 numbers from the command line arguments. Sort the numbers and display the sorted numbers. (b) Explain thread priorities and thread synchronization. Q.5 (a) List the methods of the graphics class and explain any three. (b) Create an applet with blue as background color and white as foreground color. The message is passed as a parameter in the PPLET tag. Display this message in the applet window. Q.5 (a) Design an applet that receives one number as an input from the user and displays the sum of its digits on the screen. (b) List the various Layout managers. Explain any two. 1/2

6 5 `Gv! V વ ન લ ણકત ઓ જણ વ ક ઈ પણ ણ એ લ ટ એટલ? ન ચ ન મ થડ init, paint, repaint 5 `GvZ V class અન interface વ ચ ન તફ વત ઉદ હરણ સ હત constructor overloading ન ઉપય ગ કર bank account દશ વત એક class બન વ. ન ચ ન મ થડ ન સમ વ શ કર. deposit, withdraw અન display balance. Rectangle ન મન class બન વવ. મ લ બચ રસ ફળ અન પ ર મત મ ટન method લખવ. Subclass બન વવ અન base class ન મ થડ override કરવ. Main method મ બ classesન ઓ કટ બન વવ અન લ બચ રસ ફળ તથ પ રમ ત display કરવ. V Vector class અન array વ ચ ન તફ વત લખ. Vector classન methods લખ. અન ક ઈપણ બ વણ વ. string classન સ ત મ થ સન ય દ લખ. અન ક ઈપણ ણ મ થ સ ઉદ હરણ સ હત વણ વ. V પ ચ ડ બન વવ ન અન શ કરવ મ ટન application લખ. દરક ડ એક જ લ સ મ થ શ કરવ. ડ દશ વખત પ execute કરશ. દરક વખત ડ x display કર ન ૩૦૦ મલ સ ક ડ મ ટ sleep મ ડમ જશ. n exception Out of Range ય ય યત કર. ય ર ન બર ૧ થ ૧૦ વ ચ ન હ ય ય ર exception Out of Range thrown થ ય. ન મ લખવ. મ exception Out of Range ન ઉપય ગ થય લ હ ય. V final keywordન ઉપય ગ કરવ ક રણ દરક ઉપય ગ ઉદ હરણ સ હત Package and CLSSPTH variable વ ન built-in પ કજન ય દ લખ. V કમ ડ લ ઈન arguments પરથ 7 ન બર વ ચ અન ન બર સ ટ કર અન સ ટ ન બર દ શ ત કરવ ન મ લખ. Thread priorities and thread synchronization V graphics class ન મ થ સ ન ય દ લખ. અન ક ઈપણ ણ pplet મ ટન મ લખ મ વ દળ ર ગ background હ ય અન foreground સફદ ર ગ હ ય. Messageન PPLET tag મ parameter તર ક પ સ કર. અન ત Messageન applet windowમ display કર. V એક એ એ લ ટ બન વ ક user પ સ થ ઇન ટ તર ક એક ન બર મ ળવ. અન ન પર ત ન ક ન સરવ ળ દશ વ. વ વધ લ આઉટ મ ન જર ય દ આપ. અન ક ઈપણ બ 2/2

7 Seat No.: Enrolment No. GUJRT TECHNOLOGICL UNIVERSITY Diploma Engineering - SEMESTER V EXMINTION WINTER 2012 Subject code: 3503 Date: 27/12/2012 Subject Name: Java Programming Time: am pm Total Marks: 70 Instructions: 1. ttempt any five questions. 2. Make suitable assumptions wherever necessary. 3. Figures to the right indicate full marks. 4. English version is considered to be uthentic. Q.1 (a) Explain Features of Java. (b) (i) Write and Explain Basic structure of Java program. (ii) Explain Java Virtual Machine Q.2 (a) What is Command Line argument? write a program using command line argument to sort numbers in ascending order. (b) Explain Visibility control of Java. (b) What is constructor? write its properties and make a program using constructor to implement multilevel inheritance. Q.3 (a) Give difference between String and String Buffer class? explain any Four methods of String Buffer class. (b) What is vector? explain methods of vector with suitable example. Q.3 (a) What is wrapper class? Explain wrapper class method. (b) What is Interface? write a program using interface to demonstrate multiple inheritance. Q.4 (a) What is package? write steps to create a package and give on example of it. (b) What is Exception? Explain all Exception of java. Q. 4 (a) What is user defined exception? Write a program using throw to demonstrate user defined exception. (b) What is synchronization? explain thread priorities with suitable example. Q.5 (a) Explain Life cycle of thread. (b) Explain Layout Manager of Java. Q.5 (a) Explain Life cycle of applet. (b) Develop an applet and HTML code that receive three inputs from user and display the largest value from three on the screen. 1

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9 Seat No.: Enrolment No. GUJRT TECHNOLOGICL UNIVERSITY DIPLOM ENGG.- V th SEMESTER EXMINTION JUNE Subject code: 3503/23503 Date: 06/06/2012 Subject Name: Java Programming Time: 10:30 am 01:00 pm Total Marks: 70 Instructions: 1. ttempt all questions. 2. Make suitable assumptions wherever necessary. 3. Figures to the right indicate full marks. 4. English version is considered to be uthentic Q.1 (a) Write and explain Features of Java. (b) (i) Describe the sample structure of Java program. 04 (ii) Explain super keyword. 03 Q.2 Q.3 (a) What is command Line argument? Write a program to sort the numbers in ascending order, entered by using the command line argument. (b) (i) Explain final, finally and finalizer keyword used in java. 04 (ii) Explain scope of variables in java. 03 (b) (i) What is type casting? why it is required in programming. 03 (ii) Write an applet to draw following shapes : 04 ( a) cube ( b) rectangle (a) (i) Explain visibility controls of java. 04 (ii) What is constructor? Write properties of constructor. 03 (b) (i) Give difference between method overloading & overriding. 04 (ii) Explain abstract and inner class. 03 Q.3 (a) Explain vector class with their methods (b) What is wrapper class? Explain all conversion occurs with wrapper class. Q.4 (a) What is package? Write step to create a package, give one example of it. (b) What is interface? Write a program to demonstrate multiple inheritance with interface. Q. 4 (a) Give difference between string and string buffer class, Explain any three methods of both string & string buffer class. (b) Describe the life cycle of thread. Q.5 (a) What is an Exception? How it can be handled in java? Write a program that demonstrate the use of exception handling statement. (b) What is applet? Explain Life cycle of applet. Q.5 (a) (i) Develop an applet that receive two numbers from the users and perform addition, subtraction, multiplication and division operation, write HTML code and test it. 04 Page 1 of 2

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11 Seat No.: Enrolment No. GUJRT TECHNOLOGICL UNIVERSITY Diploma Engineering Semester V Examination Dec 11- Jan 12 Subject code: 3503/23503 Date: 26/12/2011 Subject Name: Java Programming Time: am pm Total Marks: 70 Instructions: 1. ttempt all questions. 2. Make suitable assumptions wherever necessary. 3. Figures to the right indicate full marks. 4. English version is considered uthentic. Q.1 (a) Define following terms. 02 i) Package ii) Bytecode (b) Explain Features of java. 05 (c) Explain Garbage Collection and finalize() method. Q.2 nswers the followings. (a) Explain Method Overloading and Method Overriding with suitable example. (b) What is Class? Explain Nested and Inner classes with example. (b) What is Operator? Explain rithmetic and Bitwise Operators. Q.3 nswers the followings. (a) Explain bstract class with suitable example. (b) Explain final and this keyword with example. Q.3 (a) Write short note: ccess Protection (b) What is Inheritance? Explain Multilevel hierarchy Inheritance with Example. Q.4 nswers the followings. (a) What is Exception? Explain try-throw-catch-finally with suitable example. (b) What is Thread? Explain the life cycle of thread. Q. 4 (a) Explain with suitable example suspend(),resume() and stop() methods of Thread class. (b) Explain update(),paint(),repaint() methods of WT. Q.5 nswers the followings. (a) Explain Textbox, push button and Label controls of WT. (b) Write a program which read two strings from keyboard and concatenate them and print it. Q.5 (a) Explain Graphics class with their drawing methods. (b) Write a program that draws an octagon in applet. 1

12 5 `Gv! V ન ચ ન પદ ન ય ય આપ. 0 5 `GvZ ૧) પ કજ ૨) બ ઈ ક ડ વ ન લ ણ કત 0 ક ગ બ જ કલ શન અન ફ નલ ઈઝ મ થડ V મ થડ ઓવરલ ડ અન મ થડ ઓવરર ઈડ ગ ય ય ઉદ હરણ સ થ લ સ એટલ? ન ટ ડ અન ઈનર લ સ ઉદ હરણ સ થ V ઓપરટર એટલ? એરથમ ટક અન બ ટવ ઈઝ ઓપરટસ એ ક લ સન ય ય ઉદ હરણ સ થ ફ ઈનલ અન ધ સ ક વડ ઉદ હરણ સ થ V V કન ધ લખ. એ સ સ ટકશન. હર ટસ એટલ? મ ટ લ વલ હ ઈર ક હર ટસ ઉદ હરણ સ થ એ શ સન એટલ? ઈ- -કચ -ફ ઈનલ ઉદ હરણ સ થ થ ડ એટલ? ડ ન લ ઈફ સ ઈકલ V V ડ કલ સ ન સ પ ડ, રઝ મ, ટ પ મ થ ઝ ય ય ઉદ હરણ સ થ WT ન અપડટ, પ ટ અન ર પ ટ મ થ ઝ WT ન ટ શબ સ, શ બટન, લ બલ ક લ બ ગ ક બ ડ મ થ વ ચ ત ન જ ડ ણ કર ટ કરવ મ ટ ન મ લખ. V ફ સકલ સ ન ઈગ મ થ ઝ એ લ ટ મ ઓ ટ ગ ન કરવ મ ટ ન મ લખ. 2