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Data Types and Variables

Data Types and Variables
Size of int in Java is

64 bit
32 bit
16 bit
Depends on execution environment

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Data Types and Variables
In Java, the word true is ................

A Java keyword
A Boolean literal
Same as value 1
Same as value 0

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Data Types and Variables
What is the output of the following program?public class Test{static int x = 10 ; public static void main(String[] a){ Test test = new Test( ) ; Test test1 = new Test( ) ; test.x += 1 ; System.out.println( test.x + test1.x ) ; }}

22
Compilation Error
20
Throws Exception
21

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Data Types and Variables
What will be the output for the below code ?1. public class Test{2. public static void main(String[] args){3. byte i = 128;4. System.out.println(i);5. }6. }

None of these
128
0
Compilation fails with an error at line 4
Compilation fails with an error at line 3

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Data Types and Variables
The following program:public class Test{ static boolean isOK; public static void main(String args[]){ System.out.print(isOK); } }

Prints false
Will not compile as boolean can never be static
Prints true
Will not compile as boolean is not initialized

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Data Types and Variables
How many primitive data types are there in Java?

8
6
7
9

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