Problem Solving Through C (BCA) 1st Sem Previous Year Solved Question Paper 2022

Practice Mode:
5.

Discuss various looping statements used in C language.

Explanation

Looping statements are used to execute a block of code repeatedly as long as a specified condition is true. There are several looping statements available:

  1. for Loop ‘:

    • The for’ loop ‘is a commonly used loop for iterating over a range of values.

    • It consists of an initialization, condition, and an increment or decrement statement.

    • Example:

for (int i = 0; i < 5; i++) {

// Code to be repeated

}

‘ while ‘ Loop:

  • The ‘ while ’ loop executes a block of code as long as a specified condition is true.

  • It checks the condition before entering the loop.

  • Example:

int i = 0;

while (i < 5) {

// Code to be repeated

i++;

}

‘ do...while Loop ‘ :

  • The ‘ do...while loop ‘ is similar to the while loop but checks the condition after executing the loop.

  • It ensures that the loop body is executed at least once.

  • Example:

int i = 0;

do {

// Code to be repeated

i++;

} while (i < 5);

break Statement ‘:

  • The ‘ break ‘ statement is used to exit a loop prematurely when a certain condition is met.

  • Example:

for (int i = 0; i < 10; i++) {

if (i == 5) {

break; // Exit the loop when i equals 5

}

}

continue Statement ‘:

  • The continue statement is used to skip the current iteration of a loop and continue with the next iteration.

  • Example:

for (int i = 0; i < 10; i++) {

if (i == 5) {

continue; // Skip the iteration when i equals 5

}

// Code here is not executed when i equals 5

}

These looping statements provide the essential control flow mechanisms for repetitive tasks in C programs. The choice of which loop to use depends on the specific requirements of your program.