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Comprehensive List of Java Examples
In this program, you will learn how to generate a multiplication table for a given number. This is done by using for and while loops in Java.
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 running the program, the output is:
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 the while loop in Java.
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 running the program, the output is:
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 the for loop, we must increase the value of i within the loop body.
Although both programs are technically correct, it is best to use a for loop in this case. This is because the number of iterations is known (from1to10)