java do while loop

In Java, a do-while loop is a control structure that executes a block of code at least once, and then repeats the block as long as a given condition is true.

Here's the general syntax for a do-while loop in Java:

do {
    // Code to be executed
} while (condition);

The do-while loop first executes the code in the block, and then evaluates the condition. If the condition is true, the loop will execute the code again. If the condition is false, the loop will terminate.

Here's an example of how to use a do-while loop to count from 1 to 5:

int i = 1;
do {
    System.out.println(i);
    i++;
} while (i <= 5);

This will output the following:

1
2
3
4
5

It's important to note that the do-while loop will always execute the code in the block at least once, even if the condition is false initially. This is in contrast to a while loop, which will only execute the code in the block if the condition is true initially.

You can use a do-while loop to repeat a block of code an unknown number of times, or to execute the code at least once before checking the condition.