java-03 方法

#############练习######################

1.键盘录入乘法表

import java.util.Scanner;

public class PrintNN {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        System.out.println("Please input a number:");

        int b = sc.nextInt();

        xingxing(b);

    }

    public static void xingxing(int a) {

        for (int i = 1; i <= a; i++) {

            for (int j = 1; j <= i; j++) {

                System.out.print(j+"*"+i+"="+i*j+"\t");

            }

            System.out.println();

        }

    }

}
结果：

Please input a number:
8
1*1=1
1*2=22*2=4
1*3=32*3=63*3=9
1*4=42*4=83*4=124*4=16
1*5=52*5=103*5=154*5=205*5=25
1*6=62*6=123*6=184*6=245*6=306*6=36
1*7=72*7=143*7=214*7=285*7=356*7=427*7=49
1*8=82*8=163*8=244*8=325*8=406*8=487*8=568*8=64

#######################方法重载和概述######################