160804方法调用的练习题2

来源：互联网发布：淘宝网简介ppt 编辑：程序博客网时间：2024/05/21 19:22

一、管理系统
Manager.java

package com.jereh.practice3;public class Manager {    String name;    int pw;    public Manager(String name, int pw) {        super();        this.name = name;        this.pw = pw;    }    public void show(){        System.out.println("管理员用户名为："+name+"密码为："+pw);    }}

run.java

package com.jereh.practice3;public class run {    /**     * @param args     */    public static void main(String[] args) {        // TODO Auto-generated method stub        Manager why=new Manager("why",1111);        why.show();    }}

二、系统分级管理
Menu.java

package com.jereh.practice4;import java.util.Scanner;public class Menu {    public static void login(){        Scanner in=new Scanner(System.in);        int n1,n2,n3;        do{            System.out.println("1.登录系统\n2.退出");            System.out.println("请选择，输入数字：");            n1 = in.nextInt();            if (n1 == 1) {                do {                    Menu.menu1();                    n2 = in.nextInt();                     if (n2 == 2) {                        do{                        Menu.menu2();                        n3=in.nextInt();                        }while(n3!=0);                    }                } while (n2!=0);            } else {                return;            }        } while (true);    }    public static void menu1(){        System.out.println("1.客户信息管理\n2.真情回馈");        System.out.println("请选择，输入数字或按0返回上一级菜单：");    }    public static void menu2(){        System.out.println("1.幸运大放送\n2.幸运抽奖");        System.out.println("请选择，输入数字或按0返回上一级菜单：");    }}

run.java

package com.jereh.practice4;import java.util.Scanner;public class Run {    /**     * @param args     */    public static void main(String[] args) {        Menu.login();    }}

三、系统管理权限
StartSMS.java

package com.jereh.practice5;import java.util.Scanner;public class StartSMS {    static Scanner in = new Scanner(System.in);    static String name;    static int pw;    public static void system() {        do {            System.out.println("1.登录系统");            System.out.println("2.退出");            System.out.print("请输入数字：");            int n = in.nextInt();            if (n == 1) {                login();                break;            } else {                return;            }        } while (true);    }    public static void login() {        System.out.print("请输入用户名：");        name = in.next();        System.out.print("请输入密码：");        pw = in.nextInt();        do {            if (name.equals("why") && pw == 111111) {                System.out.println("登陆成功:"+name);                break;            } else {                System.out.println("你没有权限进入系统。");                system();                break;            }        } while (true);    }}

run.java

package com.jereh.practice5;public class run {    /**     * @param args     */    public static void main(String[] args) {        // TODO Auto-generated method stub        StartSMS.system();    }}

四、录入用户，查找用户位置
CustomerBiz.java

package com.jereh.practice6;import java.util.Arrays;import java.util.Scanner;public class CustomerBiz {    Scanner in = new Scanner(System.in);    String names[] = new String[20];    public void search(String name){        System.out.println("请输入查找开始位置：");        int a=in.nextInt();        System.out.println("请输入查找结束位置：");        int b=in.nextInt();        for(int i=a-1;i<b-1;i++){            if(names[i].equals(name)){                System.out.println("找到了");                return;            }else{                System.out.println("未找到");                return;            }        }    }    public void addName() {        for (int i = 0; i < 20; i++) {            System.out.print("请输入客户姓名：");            names[i] = in.next();            System.out.print("是否继续？y/n");            char tf = in.next().charAt(0);            if (tf == 'n') {                for (int j2 = 0; j2 < 20; j2++) {                    if (names[j2] != null) {                        System.out.print(names[j2] + " ");                    }                }                System.out.println("请输入你想查找的客户姓名：");                break;            }        }    }}

run.java

package com.jereh.practice6;import java.util.Scanner;public class run {    /**     * @param args     */    public static void main(String[] args) {        // TODO Auto-generated method stub        Scanner in=new Scanner(System.in);        CustomerBiz play=new CustomerBiz();        play.addName();        String searchName=in.next();        play.search(searchName);    }}

0 0