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Data Types and Variables

Data Types and Variables
In Java byte, short, int and long all of these are

unsigned
None of these
Both of the above
signed

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Data Types and Variables
The smallest integer type is ......... and its size is ......... bits.

short, 16
short, 8
short, 16
byte, 8

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Data Types and Variables
Determine output:public class Test{ int a = 10; public void method(int a){ a += 1; System.out.println(++a); } public static void main(String args[]){ Test t = new Test(); t.method(3); }}

11
None of these
4
5
12

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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); } }

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

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Data Types and Variables
Which of the following automatic type conversion will be possible?

byte to int
short to int
long to int
int to long

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Data Types and Variables
Size of int in Java is

32 bit
16 bit
Depends on execution environment
64 bit

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