纯java代码在控制台运算电话本(不使用数据库)

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Task_08

package cn.rzpt;

import java.util.List;
import java.util.Scanner;

public class Task_08 {
    private static TelBook telBook = new TelBook();
    public static String init() {
        System.out.println("----------------------电话本管理系统----------------------");
        String operations[] = telBook.getOperations();        
        for(int i = 0 ; i < operations.length;i++) 
        {
            System.out.print(i+operations[i]+"	");
        }
        System.out.println("
----------------------电话本管理系统----------------------");
        System.out.print("请选择业务:");
        String input = new Scanner(System.in).nextLine();
        return input;
    }
    public static void main(String[] args) {
        String input = init();
        List<User> users = telBook.getUsers();
        //添加
        if(input.equals("1"))
        {
            System.out.println("
----------------------添加电话本----------------------");
            System.out.print("姓名:");
            String name = new Scanner(System.in).nextLine();
            System.out.print("性别:");
            String gender = new Scanner(System.in).nextLine();
            System.out.print("年龄:");
            String age = new Scanner(System.in).nextLine();
            System.out.print("电话:");
            String tel = new Scanner(System.in).nextLine();
            System.out.print("QQ:");
            String QQ = new Scanner(System.in).nextLine();
            System.out.print("地址:");
            String address = new Scanner(System.in).nextLine();
            User user = new User(name,gender.equals("男"),Integer.parseInt(age),tel,QQ,address);
            users.add(user);
            System.out.println(user);
            System.out.println("添加成功");
            main(args);
        }
        
        if(input.equals("2"))
        {
            System.out.println("
----------------------删除电话本----------------------");
            System.out.print("请输入删除的姓名:");
            String name = new Scanner(System.in).nextLine();
            if(users.indexOf(new User(name)) == -1) 
            {
                System.out.println("此人不存在");
            }
            else
            {
                User user = users.get(users.indexOf(new User(name)));
                System.out.println(user);
                System.out.println("确定吗?1(是)0(否)");
                String select = new Scanner(System.in).nextLine();
                if(select.equals("1"))
                {
                    users.remove(user);
                    System.out.println("删除成功");
                }
                if(select.equals("0"))
                {
                    System.out.println("取消成功");
                }
            }
            main(args);
        }
        
        if(input.equals("3"))
        {
            System.out.println("
----------------------修改电话本----------------------");
            System.out.print("输入姓名");
            String name = new Scanner(System.in).nextLine();
            if(users.indexOf(new User(name)) == -1) 
            {
                System.out.println("此人不存在");
            }
            else
            {
                User user = users.get(users.indexOf(new User(name)));
                System.out.println(user);
                System.out.println("请输入信息");
                System.out.println("姓名:"+user.getName());
                System.out.print("性别:");
                String gender = new Scanner(System.in).nextLine();
                System.out.print("年龄:");
                String age = new Scanner(System.in).nextLine();
                System.out.print("电话:");
                String tel = new Scanner(System.in).nextLine();
                System.out.print("QQ:");
                String QQ = new Scanner(System.in).nextLine();
                System.out.print("地址:");
                String address = new Scanner(System.in).nextLine();
                user = new User(name,gender.equals("男"),Integer.parseInt(age),tel,QQ,address);
                users.add(user);
                System.out.println(user);
                System.out.println("修改成功");
            }    
            main(args);
        }
        if(input.equals("4"))
        {
            System.out.println("
----------------------打印所有电话本----------------------");
            for (User user : users) {
                System.out.println(user);
            }
            main(args);
        }
        
        if(input.equals("5")) 
        {
            System.out.println("
----------------------查找电话本----------------------");
            System.out.print("输入姓名");
            String name = new Scanner(System.in).nextLine();
            if(users.indexOf(new User(name)) == -1) 
            {
                System.out.println("此人不存在");
            }
            else
            {
                User user = users.get(users.indexOf(new User(name)));
                System.out.println(user);
            }
            main(args);
        }
        if(input.equals("0"))
        {
            System.out.println("退出成功");
            System.exit(0);
        }
    }

}

TelBook

package cn.rzpt;

import java.util.ArrayList;
import java.util.List;

public class TelBook {
    private final static String operations[] = {".退出",".添加",".删除",".修改",".查询所有",".根据姓名查询"};
    private List<User> users = new ArrayList<User>();
    public List<User> getUsers() {
        return users;
    }
    public void setUsers(List<User> users) {
        this.users = users;
    }
    public static String[] getOperations() {
        return operations;
    }
    
    
}

User

package cn.rzpt;

public class User{
    private String name;
    private boolean gender;
    private int age;
    private String tel;
    private String QQ;
    private String address;
    public User(String name) {this.name = name;}
    public User(String name, boolean gender, int age, String tel, String qQ, String address) {
        super();
        this.name = name;
        this.gender = gender;
        this.age = age;
        this.tel = tel;
        QQ = qQ;
        this.address = address;
    }

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public boolean isGender() {
        return gender;
    }
    public void setGender(boolean gender) {
        this.gender = gender;
    }
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public String getTel() {
        return tel;
    }
    public void setTel(String tel) {
        this.tel = tel;
    }
    public String getQQ() {
        return QQ;
    }
    public void setQQ(String qQ) {
        QQ = qQ;
    }
    public String getAddress() {
        return address;
    }
    public void setAddress(String address) {
        this.address = address;
    }
    @Override
    public String toString() {
        return "姓名:" + name + ", 性别:" + (gender?"男":"女") + ", 年龄:" + age + ", 电话:" + tel + ", QQ:" + QQ
                + ", 地址:" + address;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((name == null) ? 0 : name.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        User other = (User) obj;
        if (name == null) {
            if (other.name != null)
                return false;
        } else if (!name.equals(other.name))
            return false;
        return true;
    }
    


}