Floyd Triangle

Print Floyd’s triangle pattern using consecutive numbers.

JavaBeginner

Java

public class Main {
    public static void main(String[] args) {
        int n = 5;
        int num = 1;
        for (int i = 1; i <= n; i++) {
            for (int j = 1; j <= i; j++) {
                System.out.print(num++ + " ");
            }
            System.out.println();
        }
    }
}

Output

1 
2 3 
4 5 6 
7 8 9 10 
11 12 13 14 15

We maintain a running number that increments each time we print in the nested loop.

Star Patterns

Pascal Triangle