variable's block

    main()

    {

        int *j;

        {

         int i=10;

         j=&i;

         }

         printf("%d",*j);

}

Answer:

10

Explanation:

The variable i is a block level variable and the visibility is inside that block only. But the lifetime of i is lifetime of the function so it lives upto the exit of main function. Since the i is still allocated space, *j prints the value stored in i since j points i.

Blog Author: Vijay Kumar

Go to: Java Aptitude