What is the function of break in java programming?

Answer 1

The break keyword is used to prematurely exit the current block of code. Java only allows it to be used in the body of a loop or switch, and is helpful when you want a special reason to stop executing that code.

Here is an example, in which we will search through an array of integers for a particular value. If that value is found, we will print out its location in the array and then stop running.

void search(int num, int[] array) {

// Store the position of num in array (or -1 if it wasn't found)

int position = -1;

// Here is our search loop

for(int i = 0; i < array.length; ++i) {

if(array[i] == num) {

// If we find the number, store its position and exit the loop

position = i;

break;

}

}

// Print out our results

if(position >= 0) {

System.out.println(num + " found at position: " + position);

}else {

System.out.println(num + " was not found in the array");

}

}