Example: Half Pyramid Pattern in Java of Stars using For loop

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Java
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// Half Pyramid Pattern in Java of Stars using For loop
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int r = 0, i, j;
        // r - denotes the number of rows

        System.out.println("-----To print the half pyramid enter the number of rows-----");
        r = in.nextInt();

        System.out.print("\n");
        for (i = 1; i <= r; ++i) {
            for (j = 1; j <= i; ++j)
                System.out.print("* ");
            System.out.print("\n");
        }
    }
}