Output in Hexadecimal

main()

{

      printf("%x",-1<<4);

      printf("%x",4>>-1);

}

Answer:

fff0

0fff

Explanation :

-1 is internally represented as all 1's

1111 1111 1111 1111

When left shifted four times the least significant 4 bits are filled with 0's.

1111 1111 1111 0000

  f   f    f    0

The %x format specifier specifies that the integer value be printed as a hexadecimal value.

Blog Author: Vijay Kumar

Go to: Java Aptitude