用JAVA编写通讯录

try{ System.out.println("请你按键选择!"); int s = new Scanner(System.in).nextInt(); switch(s){ case 1:{
caseone(); break; } case 2:{ casetwo(); break; } case 3: { casethree(); break; } case 4: { casefour(); break;
System.out.println("请输入要查询的联系人名字:"); System.out.println(num); name = in.readLine();
for(int i=0;i<num;i++) {
if(name.equals(c[i].Name())) {
System.out.println("查询成功！"); System.out.println("你要查找的联系人信息为："); System.out.println("ID:"+c[i].Id()+"\n 名 字 :"+c[i].Name()+"\n 电 话:"+c[i].Phone()+"\nQQ:"+c[i].QQ()+"\n 性别:"+c[i].Sex()+"\n 地址:"+c[i].Address()); break; } if(i==num) System.out.println("查找失败！"); }
}
}
class Read{ private String id; private String name; private String phone; private String qq; private String sex; private String address;
public String Name(){ return name;
else System.out.println("添加失败！");
}
public static void casetwo() throws IOException {
System.out.println("请输入要删除的名字："); name = in.readLine(); for(int i=0;i<num;i++) {
while(true){ System.out.println("*************通讯录***************"); System.out.println("1.添加联系人"); System.out.println("2.修改联系人"); System.out.println("3.删除联系人"); System.out.println("4.查询联系人"); System.out.println("5.退出");
c[i] = new Read(id,name,phone,qq,sex,address); break; } if(i==num) System.out.println("修改失败！"); } }
public static void casefour() throws IOException {
static BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); static String id="",name="", address="", phone="", sex="", qq="", yn=""; static Read[] c = new Read[10]; static int num = 0; public static void main(String[] args) {
if(name.equals(c[i].Id())) {
System.out.println("删除成功！"); for(;i<num-1;i++)
c[i]=c[i+1]; c[num] =null; break; } if(i==num) System.out.println("删除失败！"); } }
System.out.println("请从新输入信息:"); System.out.println("请输入 ID"); id = in.readLine(); System.out.println("请输入名字"); name = in.readLine(); System.out.println("请输入电话"); phone = in.readLine(); System.out.println("请输入 QQ"); qq = in.readLine(); System.out.println("请输入性别"); sex = in.readLine(); System.out.println("请输入地址"); address = in.readLine();
} case 5:
System.exit(0); default:
System.out.println("输入错误,请从新输入");
} } catch(Exception e){
System.out.println("你必须输入数字类型！"); }
}
} public static void caseone() throws IOException {
package shizi;
import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Scanner;
public class Tongxunlu {
} }
System.out.println("请输入性别"); sex = in.readLine(); if(sex.equals("男")||sex.equals("女"))
break; System.out.println("性别输入错误,重新输入"); } System.out.println("请输入地址"); address = in.readLine(); System.out.println("输入完成,是否添加(Y/N)"); yn = in.readLine(); if(yn.equals("Y") || yn.equals("y")) { c[num] = new Read(id,name,phone,qq,sex,address); num++; System.out.println("添加成功！"); }
}
public Read(String id,String name,String phone,String qq,String sex,String address){ this.id = id; = name; this.phone = phone; this.qq = qq; this.sex =sex; this.address = address;
public static void casethree() throws IOException {
System.out.println("请输入要修改的名字："); name = in.readLine(); for(int i=0;i<num;i++) {
if(name.equals(c[i].Id())) {
System.out.println("请输入 ID"); id = in.readLine(); System.out.println("请输入名字"); name = in.readLine(); System.out.println("请输入电话"); phone = in.readLine(); System.out.println("请输入 QQ"); qq = in.readLine(); while(true) {
}
public String Id(){ return id;
}
public String Phone(){ return phone;
}
public String QQ(){ return qq;
}
public String Sex(){ return sex;
}
public String Address(){ return address;