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Data Types and Variables

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

signed
None of these
Both of the above
unsigned

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Data Types and Variables
Size of float and double in Java is

32 and 64
64 and 64
32 and 32
64 and 32

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Data Types and Variables
What will be the output for the below code ?1. public class Test{2. int i=8;3. int j=9;4. public static void main(String[] args){5. add();6. }7. public static void add(){8. int k = i+j;9. System.out.println(k);10. }11. }

0
Compilation fails with an error at line 8
None of these
Compilation fails with an error at line 5
17

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

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

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Data Types and Variables
What will be output of the following program code?public class Test{public static void main(String[] a){short x = 10;x = x*5;System.out.print(x);} }

50
Compilation Error
None of these
10

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Data Types and Variables
Determine output:class A{ public static void main(String args[]){ int x; x = 10; if(x == 10){ int y = 20; System.out.print("x and y: "+ x + " " + y); y = x*2; } y = 100; System.out.print("x and y: " + x + " " + y); }}

10 20 10 100
Error
10 20 10 20
10 20 10 10

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