打印一个三角形

代码

public class Main {
    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 = 2; j <= i; j++) {
                System.out.print("*");
            }
            System.out.println();
        }
    }
}

运行结果

     *
    ***
   *****
  *******
 *********