Looping in C

The C code ‘for(;;)’ represents an infinite loop. It can be terminated by ___________

• a goto statement
• a continue statement
• a return statement
• a break statement

What will be printed by the given code ?

#include <stdio.h>

int main()

{ int z = 1;

while (z <= 5)

{ if (z == 3)

{ z++; }

printf("%d ", z);

z++; }
return 0; }

• 2 3 4 5
• 1 2 4 5

• 2 3 4 5 6
• 1 2 3 4 6

what will be printed by the following code?

#include<stdio.h>

int main()

{while(1)

{printf("Hello ");}

return 0;

}

• Hello Hello Hello ... (infinitely)
• Hello is printed once

• Run time error

• Compile time error

The for statement

for(expr1;expr2;expr3)

{statement;}

is equivalent to

• while(expr1 == expr2)

  {

  statement;

  expr3;

  }

• while(expr1 != expr2)

  {

  statement;

  expr3;

  }

• expr1;

  while(expr2)

  {

  statement;

  expr3;

  }

• None of the above

The code:

#include<stdio.h>

int main()

{int j = 0;

while(j<3)

{j++;

printf("In the loop");}

How many times 'j' value is checked?

• 2
• 3
• 5
• 4

In which type of loop, the body of the loop is executed at least once

• for loop
• while loop
• both for and while loop

• do-while loop

What is the output?

#include<stdio.h>

int main()

{ int p=1;

while(p=8)

{ printf("Test ");

p++;}}

• Prints 'Test ' followed by 'Done'
• Single print of 'Test'
• Infinite loop printing 'Test '
• No output due to syntax error

How many times the following code prints the string “hello”

for(i=1;i<=50;i++)

    printf(“Hello”);

• 50
• 51

• 49

• 1

The first expression in a for… loop is

• the termination of the loop
• the increment of the loop variable
• the condition for the loop
• the initialization of the loop variable

Continue statement

• Breaks loop and goes to next statement after loop

• does not break loop but starts new iteration

• exits the program

• Starts from beginning of program