Java Program to Generate Multiplication Table

In this program, you'll learn to generate multiplication table of a given number. This is done by using a for and a while loop in Java.

Example 1: Generate Multiplication Table using for loop

public class MultiplicationTable {

    public static void main(String[] args) {

        int num = 5;
        for(int i = 1; i <= 10; ++i)
        {
            System.out.printf("%d * %d = %d \n", num, i, num * i);
        }
    }
}

When you run the program, the output will be:

5 * 1 = 5
5 * 2 = 10
5 * 3 = 15
5 * 4 = 20
5 * 5 = 25
5 * 6 = 30
5 * 7 = 35
5 * 8 = 40
5 * 9 = 45
5 * 10 = 50

The same multiplication table can also be generated using a while loop in Java.

Example 2: Generate Multiplication Table using while loop

public class MultiplicationTable {

    public static void main(String[] args) {

        int num = 9, i = 1;
        while(i <= 10)
        {
            System.out.printf("%d * %d = %d \n", num, i, num * i);
            i++;
        }
    }
}

When you run the program, the output will be:

9 * 1 = 9
9 * 2 = 18
9 * 3 = 27
9 * 4 = 36
9 * 5 = 45
9 * 6 = 54
9 * 7 = 63
9 * 8 = 72
9 * 9 = 81
9 * 10 = 90

In the above program, unlike a for loop, we have to increment the value of i inside the body of the loop.

Though both programs are technically correct, it is better to use for loop in this case. It's because the number of iteration (from 1 to 10) is known.