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Data Types and Variables

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

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

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Data Types and Variables
What will the output of the following program?public class Test{ public static void main(String args[]){ float f = (1 / 4) * 10; int i = Math.round(f); System.out.println(i); }}

25
3
2
0
2.5

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Data Types and Variables
What is the output for the below code ?1. public class Test{2. public static void main(String[] args){3. int i = 010;4. int j = 07;5. System.out.println(i);6. System.out.println(j);7. }8. }

None of these
10 7
8 7
Compilation fails with an error at line 3
Compilation fails with an error at line 5

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

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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 20
Error
10 20 10 100
10 20 10 10

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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. }

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

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