package com.steven.demo;

/**
 * 打印 5行的三角形
 */
public class SquareDemo {
    public static void main(String[] args) {

        for (int i = 1; i < 6; 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();
        }
    }
}

package com.steven.demo;

/**
 * 打印 5行的三角形
 */
public class SquareDemo {
    public static void main(String[] args) {

        for (int i = 1; i < 6; 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();
        }
    }
}