另一个 Java 实验通讯录管理程序

特点:

  • 命令行菜单式操作
  • 批量添加联系人
  • 添加、查询、修改、删除联系人
  • 列出、搜索联系人
  • 保存、载入数据文件

Main.java

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package com.darwindev;
import java.util.Scanner;
public class Main {
private static void displayMenu() {
System.out.println(
"@ 1. Patch Add Contacts" + "\n" +
"@ 2. Add Contact" + "\n" +
"@ 3. Query Contact" + "\n" +
"@ 4. Edit Contact" + "\n" +
"@ 5. Delete Contact" + "\n" +
"@ 6. List All Contacts" + "\n" +
"@ 7. Filter Contacts" + "\n" +
"@ S. Save Contacts" + "\n" +
"@ R. Read Contacts" + "\n" +
"@ E. Exit"