JAVA打印三角形

打印三角形

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