Java Programming MCQ (Multiple Choice Questions) SET-3

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This page provide you Java programming Multiple Choice Question Answer that is very useful for Semester , DRDO, ISRO ,Banking , Railway, and another exam.

Java Programming

Java is a widely used object-oriented programming language and software platform that runs on billions of devices, including notebook computers, mobile devices, gaming consoles, medical devices and many others. The rules and syntax of Java are based on the C and C++ languages

 

Q.41 Which of the following variable declaration would not compiled in a java program ?

A) int var
B) float var
C) double var 
D) int-I-var

ANSWER= (D) int-I-var

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Q.42 A constructor is related with

A) Same name as the class it is declared within
B) Is used to create package
C) Is used to define Applet constructor 
D) All of above

ANSWER= (A) Same name as the class it is declared within

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Q.43 JVM is a

A) Java virtual machine
B) Java variable modifier
C) Java vertical machine 
D) Java vendor machine

ANSWER= (A) Java virtual machine

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Q.44 What is byte code in context of Java ?

A) The type of code generated by Java compiler
B) Code generated by Java virtual machine
C) Another name of Java source file 
D) Related with Java comments

ANSWER= (A) The type of code generated by Java compiler

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Q.45 The Java run time system automatically calls this method while garbage collection

A) finalizer ()
B) finalize ()
C) finally () 
D) fanalised ()

ANSWER= (B) finalize ()

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Q.46 An overloaded method consist of

A) with same method but different types of parameters
B) with different method name only
C) method name may be same or different  
D) all of above

ANSWER= (A) with same method but different types of parameters

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Q.47 A protected member can be accessed in

A) subclass of same package
B) non sub- class of same package
C) non sub class of different package  
D) true for both (a) and (b)

ANSWER= (A) subclass of same package

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Q.48 All exception types are sub classes of the built in class in

A) Exception
B) Run time exception
C) Error  
D) Throwable

ANSWER= (D) Throwable

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Q.49 In Java , objects are passed as

A) copy of that object
B) Method call by value
C) Memory address  
D) constructor

ANSWER= (C) Memory address

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Q.50 Which of following not a component of Java IDE

A) Net Beans
B) Borland’s Jbuilder
C) MS J++  
D) Symantec visual cafe

ANSWER= (D) Symantec visual cafe

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Q.51 Which of following is incorrect name

A) xyz
B) 2nd name
C) xy2z  
D) xyz2

ANSWER= (B) 2nd name

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Q.52 Applet cann’t be viewed using

A) Netscape navigator
B) Internet Explorer
C) Sun Hot Java Browser  
D) Applet viewer tool which comes with JDK

ANSWER= (D) Applet viewer tool which comes with JDK

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Q.53 Java compiler Javac translate Java source code into

A) Assembly language
B) Byte code
C) Bit code  
D) Machine code

ANSWER= (B) Byte code

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Q.54 In Java character const value is its integer value in the

A) EBCDIC char set
B) Unicode char code
C) ASCII char code  
D) Binary code

ANSWER= (C) ASCII char code

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Q.55 Which one of the used to document the program and improve its readability

A) System calls
B) Keyword
C) Comments  
D) Blocks

ANSWER= (C) Comments

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Q.56 In Java , a try block should immediately followed by one or more

A) Throw blocks
B) Run blocks
C) Catch blocks  
D) Exit blocks

ANSWER= (C) Catch blocks

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Q.57 When one object acquires the properties of another objects is called

A) Encapsulation
B) Polymorphism
C) Overloading  
D) Inheritance

ANSWER= (D) Inheritance

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Q.58 Multiple inheritance means

A) One class inheriting more super class
B) More class inheriting from one super class
C) One class inheriting one super class  
D) None of above

ANSWER= (A) One class inheriting more super class

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Q.59 The wrapping of data and functions into a single units is called

A) Encapsulation
B) Abstraction
C) Data hiding  
D) polymorphism

ANSWER= (A) Encapsulation

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Q.60 Which of the following has a method name flush ()

A) Input stream
B) Output stream
C) Reader stream  
D) Input reader stream

ANSWER= (B) Output stream

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Computer Science MCQ (Multiple Choice Questions)

S.NO	Subjects
1	Basic Computer
2	IT System (Diploma)
3	C Programming
4	C++ Programming
5	Java Programming
6	Data Structure
7	Computer Organization & Architecture
8	Operating System
9	Digital Electronics
10	Data Base Management System
11	System Maintenance
12	Data Communication & Networking
13	Internet & Web Technology
14	Software Engineering
15	Computer Graphics
16	Multimedia
17	System Software
18	Management
19	Visual Basic
20	Artificial Intelligence
21	BCECE LE English