Question

用java写*符号金字塔.在线等

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

Answer 1

import java.util.Scanner;

public class Demo {
public static void main(String[] args) {
Scanner reader = new Scanner(System.in);
System.out.print("请输入金字塔的层数：");
int x = reader.nextInt();
for (int i = 1; i < x; i++) {
for (int j = 1; j < x - i; j++) {
System.out.print(" ");
}
for (int j = 1; j <= 2 * i - 1; j++) {

System.out.print("*");// 打印星
}

System.out.println();// 换行
}

}
}