While Loop and Program to Check Prime Number in Java || Tutorial 27

In computer programming, loops are used to repeat a block of code. For example, if you want to show a message 100 times, then you can use a loop. It's just a simple example; you can achieve much more with loops. Java while loop: Java while loop is used to run a specific code until a certain condition is met. The syntax of the while loop is: while (testExpression) { // body of loop } Here, A while loop evaluates the textExpression inside the parenthesis (). If the textExpression evaluates to true, the code inside the while loop is executed. The textExpression is evaluated again. This process continues until the textExpression is false. When the textExpression evaluates to false, the loop stops. A prime number is a number which is divisible by only two numbers: 1 and itself. So, if any number is divisible by any other number, it is not a prime number.

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