J250511/01-JavaSE阶段代码/J20250802/demo04/PersonService.java

package J20250802.demo04;

import java.io.*;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;

/**
 * @author WanJl
 * @version 1.0
 * @title PersonService
 * @description
 * @create 2025/8/2
 */
public class PersonService {
    private static TreeSet<Person> set=new TreeSet<>();
    public static boolean saveToSet(Person p){
        return set.add(p);
    }
    public static boolean saveToFile(Map<String,Person> set)  {
        try{
            FileOutputStream fos = new FileOutputStream("D:/abc.txt");
            ObjectOutputStream oos=new ObjectOutputStream(fos);
            oos.writeObject(set);
            return true;
        }catch (IOException e){
            return false;
        }
    }
}