For Loop

A for loop is an iteration that is designed to repeat its block of code a certain number of times.

for (initialization; condition; update) {
    // Code to be executed repeatedly
}

1. Initialization: This part is used to initialize a loop control variable. It typically declares and initializes a counter variable before entering the loop.

2. Condition: This is a boolean expression that determines whether the loop should continue executing or terminate. If the condition evaluates to true, the loop continues; if it evaluates to false, the loop exits.

3. Update: This part is used to update the loop control variable after each iteration of the loop. It can be used to increment or decrement the counter variable.

4. Code block: The code block enclosed within curly braces {} is the body of the loop. It contains the statements that you want to execute repeatedly as long as the condition is true.

// Example Code. Printing 1 to 5.
for (int i = 1; i <= 5; i++) {
    System.out.println(i);
}

• int i = 1 initializes the loop control variable i to 1.

• i <= 5 is the condition. As long as i is less than or equal to 5, the loop will continue.

• i++ is the update statement, which increments i by 1 after each iteration.

The loop will run for values of i from 1 to 5, printing each value, and then exit when i becomes 6 (because 6 <= 5 evaluates to false).