Output Questions(3 Questions)

1. Predict the output of the code:

#include<stdio.h>
main()
{
    char x;
    int y;
    x=100;
    y=125;
    printf("%c\n",x);
    printf("%c\n",y);
    printf("%d\n",x);
}

OUTPUT:

2. Point out the error if any in the following program:

#include<stdio.h>
main()
{
    int i=1;
    switch(i)
    {
        printf("HELLO");
        case 1:
            printf("Individualists unite!");
            break;
        case 2:
            printf("\n Money is the root of all wealth");
            break;
    }
}

OUTPUT :
Individualists unite!
printf statement before the case begins does not give any error but it is ignored.

3. Point out the error if any in the following program:

#include<stdio.h>
main()
{
    int i=4,j=2;
    switch(i)
    {
        case 1:
            printf("\n This is case 1");
            break;
        case j:
            printf("\n This is case j");
            break;
    }
}

OUTPUT:
Constant expression is required in case j, we cannot use j.