java loop for

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java loop for

The for loop in Java is a control statement that allows you to repeat a block of code a specified number of times. It is a looping construct that executes a block of code as long as a boolean condition is true.

The syntax for the for loop in Java is as follows:

for (initialization; condition; increment) {
    // code to be executed
}

Here, the initialization expression is executed once before the loop starts. It is used to initialize variables that are used in the loop condition. The condition is a boolean expression that is evaluated before each iteration of the loop. If the condition is true, the loop body is executed; if it is false, the loop terminates. The increment expression is executed after each iteration of the loop and is used to update variables that are used in the loop condition.

Here is an example of how to use a for loop in Java:

for (int i = 0; i < 10; i++) {
    System.out.println("i = " + i);
}

In this example, the for loop iterates 10 times and prints the value of i to the console on each iteration. The output will be:

i = 0
i = 1
i = 2
i = 3
i = 4
i = 5
i = 6
i = 7
i = 8
i = 9

You can also use the break and continue statements to control the flow of a for loop. The break statement terminates the loop and transfers control to the statement immediately following the loop. The continue statement skips the rest of the current iteration and starts the next iteration.

Here is an example of how to use the break and continue statements in a for loop:

for (int i = 0; i < 10; i++) {
    if (i == 5) {
        break; // terminate the loop when i is 5
    }
    if (i % 2 == 0) {
        continue; // skip the rest of the current iteration when i is even
    }
    System.out.println("i = " + i);
}

In this example, the for loop iterates 10 times, but it terminates when i is 5 and skips the rest of the current iteration when i is even. The output will be:

i = 1
i = 3
i = 5
Created Time:2017-11-03 00:14:54  Author:lautturi