What is the work of break keyword?

The `break` keyword in programming, specifically within loop or switch-case constructs, serves as a control flow statement. Its primary function is to terminate the loop or exit the switch-case block where it is placed, transferring control to the statement immediately following the loop or switch-case block. Here’s how it operates in different contexts:

1. In Loops (for, while, do-while): When a `break` statement is encountered inside any loop (for, while, do-while), it causes an immediate exit from the loop. The loop stops executing, regardless of whether its loop condition remains true or not, and control moves to the next statement following the loop.

2. In a Switch-Case Statement: Within a switch-case structure, a `break` is used to exit a case block once the case condition has been met and its statements executed. If a `break` is not provided, the program will continue executing the next case or default case (if any), a behavior known as “fall-through”.

The `break` keyword is essential for controlling the flow of the program, preventing infinite loops, and ensuring that only the relevant case in a switch-case construction is executed.