求一个java电话本小程序！用控制台运行就成！

//就是这个啦~~~ ,优化完毕

import java.util.Scanner;
import java.util.Vector;

public class PhoneBook {

Vector<Person> pVec = new Vector<Person>();
static Scanner san = new Scanner(System.in);

public void add() {
System.out.print("输入姓名: ");
String name = san.next();
System.out.print("输入号码: ");
String phone = san.next();
Person p = new Person(name, phone);
pVec.add(p);
begin();
}

public void select() {
System.out.print("输入查找的用户名: ");
String name = san.next();
for(int i = 0; i < pVec.size(); i ++) {
Person p = pVec.get(i);
if(name.equals(p.getName())) {
System.out.println(p);
}
}
begin();
}

public void delete() {
System.out.print("输入删除的用户名: ");
String name = san.next();
for(int i = 0; i < pVec.size(); i ++)