第15章上机练习4

package cn.bdqn.com;

import java.util.Scanner;

public class shasngji44444444 {

	public StringBuffer Show(double money) {
		StringBuffer str=new StringBuffer(String.valueOf(money));		
		for(int i=str.indexOf(".")-3;i>0;i=i-3){
			str.insert(i,',');
		}	
    return str;
	}
	public static void main(String[] args) {
		shasngji44444444 v=new shasngji44444444 ();
		Scanner input = new Scanner(System.in);
		String[] goods=new String[]{"电风扇","洗衣机","电视机","冰 箱","空调机"};
		double[] price=new double[]{124.23,4500,8800.90,5000.88,4456};
		
		System.out.println("请输入用户名:");
		String name=input.next();
		System.out.println("请输入密码:");
		String pwd=input.next();
		if(name.equals("tom")&&pwd.equals("123")){
			System.out.println("登陆成功");
		}else{
			System.out.println("用户名或密码不匹配，登录失败！");
		}
		
		System.out.print("*********欢迎进入商品批发城*********");
		System.out.print("\n\t编号\t商品\t价格\n");
		for(int i=0;i