java-第九章-循环结构进阶-输入行数,打印直角三角行

package 上机练习;

import java.util.Scanner;

public class A03 {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input = new Scanner (System.in);
System.out.println("请输入直角三角形的行数:");
int rows = input.nextInt();
for (int i = 0; i <=rows; i++) {
for (int j = 0; j <2*i-1; j++) {
System.out.print("*");
}
System.out.println();
}
}

}