C Programming: Looping and Decision Making Statements Quiz

Purpose of Break Statement in C

• The break statement in C terminates the execution of the innermost loop or switch statement it is currently inside.
• It jumps the control flow outside the loop or switch block.
• It is often used alongside conditional statements (if, else) to stop iteration when a specific condition is met.

Syntax of a while Loop in C

• The while loop is a pre-test loop that executes the code block repeatedly as long as the condition remains true.
• General syntax:

while (condition) {
    // Code to be executed repeatedly
}

• condition is a boolean expression that is evaluated before each iteration.
• If the condition is true, the loop iterates again; otherwise, the loop terminates.

C Code Example of Nested Loop

#include <stdio.h>

int main() {
    for (int i = 1; i <= 3; i++) {
        for (int j = 1; j <= 3; j++) {
            printf("%d ", i * j);
        }
        printf("\n");
    }
    return 0;
}

• This C code demonstrates a nested loop with an outer for loop and an inner for loop.
• The inner loop executes fully for each iteration of the outer loop, resulting in a table-like output.

Decision-Making Statements in C

• if-else statement: It executes a block of code only if a specific condition is true. If the condition is false, an optional else block executes.
• switch-case statement: It provides a more efficient way to execute different code blocks based on the value of an expression. It checks the value of a variable or expression against multiple case labels.

Function of Break within Loops in C

• When break is encountered inside a loop, the loop is immediately terminated.
• Control flow jumps to the statement immediately after the loop.
• It is useful for scenarios where you want to stop the loop prematurely, such as when a specific condition is satisfied.