Hi,
Practice the following Questions.
1.What is the output of the following code.
#include <stdio.h>
int main()
{
int var = 10;
printf("Value: %d\n", var);
printf("Address: %u", &var);
return 0;
}
Example 1
2. What is the output of the following program. reason.
# include <stdio.h>
void method1(int var)
{
var = 30;
}
int main()
{
int z= 20;
method1(z);
printf("%d", z);
return 0;
}
3. What is the output of the following code.
# include <stdio.h>
void method1(int *ptr)
{
*ptr = 30;
}
int main()
{
int z = 20;
method1(&z);
printf("%d", z);
return 0;
}
4. What is the output of the following code.
#include <stdio.h>
int main()
{
int *ptr;
int y;
ptr = &y;
*ptr = 0;
printf(" y = %d \n", y);
printf(" *ptr = %d \n", *ptr);
*ptr += 5;
printf(" y = %d \n", y);
printf(" *ptr = %d \n", *ptr);
(*ptr)++;
printf(" y = %d \n", y);
printf(" *ptr = %d \n", *ptr);
return 0;
}
5. What is the output of the following code.
#include<stdio.h>
int main()
{
char *ptr = "Sudhakar";
printf("%c \n", *&*&*ptr);
return 0;
}
6. What is the output of the following code.
#include <stdio.h>
void method1(int *p)
{
int j = 2;
p = &j;
printf("%d ", *p);
}
int main()
{
int i = 100, *p = &i;
method1(&i);
printf("%d ", *p);
}
7. What is the output of the following code.
#include<stdio.h>
int main()
{
char *p = NULL;
char *q = 0;
if (p)
printf("Hello \n");
else
printf("null Hello \n");
if (q)
printf("Sudhakar \n");
else
printf("null Sudhakar\n");
}
8. What is the output of the following code.
#include<stdio.h>
int main()
{
int i = 10;
void *p = &i;
printf("%d\n", (int)*p);
return 0;
}
9. What is the output of the following code. is it give any error?
#include<stdio.h>
int main()
{
int *x;
*x=100;
return 0;
}
10. Pointer variable is declared using ___ sign.
a. * b. & c. ^ d. $
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