Java For Loop Examples

Real-Life Examples

To demonstrate a practical example of the for loop, let's create a program that counts to 100 by tens:

for (int i = 0; i <= 100; i += 10) {
  System.out.println(i);
} 

In this example, we create a program that only print even values between 0 and 10:

for (int i = 0; i <= 10; i = i + 2) {
  System.out.println(i);
}

And in this example, we create a program that prints the multiplication table for a specified number:

int number = 2;

// Print the multiplication table for the number 2
for (int i = 1; i <= 10; i++) {
  System.out.println(number + " x " + i + " = " + (number * i));
} 

Here is a simple program that prints the seat numbers in a theater row:

for (int seat = 1; seat <= 5; seat++) {
  System.out.println("Seat number: " + seat);
}

Use a loop to calculate the factorial of a given number:

int n = 5;
int fact = 1;

for (int i = 1; i <= n; i++) {
  fact *= i;
}

System.out.println("Factorial of " + n + " is " + fact);
// Output: Factorial of 5 is 120