C Programming - Control Instructions
Exercise : Control Instructions - Point Out Correct Statements
6.
Which of the following statements are correct about the below C-program?
#include<stdio.h>
int main()
{
int x = 10, y = 100%90, i;
for(i=1; i<10; i++)
if(x != y);
printf("x = %d y = %d\n", x, y);
return 0;
}
| 1 : | The printf() function is called 10 times. |
| 2 : | The program will produce the output x = 10 y = 10 |
| 3 : | The ; after the if(x!=y) will NOT produce an error. |
| 4 : | The program will not produce output. |
7.
Which of the following sentences are correct about a for loop in a C program?
| 1: | for loop works faster than a while loop. |
| 2: | All things that can be done using a for loop can also be done using a while loop. |
| 3: | for(;;); implements an infinite loop. |
| 4: | for loop can be used if we want statements in a loop get executed at least once. |
8.
Which of the following statements are correct about the below program?
#include<stdio.h>
int main()
{
int n = 0, y = 1;
y == 1 ? n=0 : n=1;
if(n)
printf("Yes\n");
else
printf("No\n");
return 0;
}
9.
Which of the following sentences are correct about a switch loop in a C program?
| 1: | switch is useful when we wish to check the value of variable against a particular set of values. |
| 2: | switch is useful when we wish to check whether a value falls in different ranges. |
| 3: | Compiler implements a jump table for cases used in switch. |
| 4: | It is not necessary to use a break in every switch statement. |
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