Programming  Java  Variables

11. Int, long, byte, short are the data types of _____data types?

unsigned signed both a. and b. None of these

Share this QA

12. Which of the following is correct?

int a = 16, a>>2 = 4 int b = -8, b>>1 = -4 int a = 16, a>>>2 = 4 All of the above

Share this QA

13. Which of the following is the mutable wrapper class?

Integer BigInteger Boolean Character

Share this QA

14. What is the range of data type short in Java?

-128 to 127 -32768 to 32767 -2147483648 to 2147483647 None of the mentioned

Share this QA

15. What is the range of data type byte in Java?

-128 to 127 -32768 to 32767 -2147483648 to 2147483647 None of the mentioned

Share this QA

16. Which of the following are legal lines of Java code?
1. int w = (int)888.8;
2. byte x = (byte)100L;
3. long y = (byte)100;
4. byte z = (byte)100L;

1 and 2 2 and 3 3 and 4 All statements are correct.

Share this QA

17. An expression involving byte, int, and literal numbers is promoted to which of these?

int long byte float

Share this QA

18. 18. Which of these literals can be contained in a data type float variable?

1.7e-308 3.4e-038 1.7e+308 3.4e-050

Share this QA

19. Which data type value is returned by all transcendental math functions?

int float double long

Share this QA

20. What is the output of this program?
class average {
public static void main(String args[])
{
double num[] = {5.5, 10.1, 11, 12.8, 56.9, 2.5};
double result;
result = 0;
for (int i = 0; i < 6; ++i)
result = result + num[i];
System.out.print(result/6);
}
}

16.34 16.566666644 16.46666666666667 16.46666666666666

Share this QA

 

*Click on the QNo to display a Question.

Total Ans