每个程序中只有一个public类，主类？

import java.io.*;

public class GameSaverTest {
    public static void main(String[] args){
        //创建人物
        GameCharacter one=new GameCharacter(50,"Elf",new String[] {"bow","sword","dust"});
        GameCharacter two=new GameCharacter(200,"Troll",new String[] {"bare hands","big ax"});
        GameCharacter three=new GameCharacter(120,"Magician",new String[] {"spells","invisibility"});
        
        
        try{
            ObjectOutputStream os=new ObjectOutputStream(new FileOutputStream("Game.ser"));
            os.writeObject(one);
            os.writeObject(two);
            os.writeObject(three);
            os.close();
        }catch(IOException ex){ex.printStackTrace();}
        one=null;
        two=null;
        three=null;
        
        try{
            ObjectInputStream is=new ObjectInputStream(new FileInputStream("Game.ser"));
            GameCharacter oneRestore=(GameCharacter) is.readObject();
            GameCharacter twoRestore=(GameCharacter) is.readObject();
            GameCharacter threeRestore=(GameCharacter) is.readObject();
            
            System.out.println("One's type:"+oneRestore.getType());
            System.out.println("Two's type:"+oneRestore.getType());
            System.out.println("Three's type:"+oneRestore.getType());
        }catch(Exception ex){
            ex.printStackTrace();
        }
    }

}

程序2：

import java.io.*;


public class GameCharacter implements Serializable{
    int power;
    String type;
    String[] weapons;
    
    public GameCharacter(int p,String t,String[] w){
        power=p;
        type=t;
        weapons=w;
    }
    
    public int getPower(){
        return power;
    }
    public String getType(){
        return type;
    }
    public String getWeapons(){
        String weaponList="";
        
        for(int i=0;i<weapons.length;i++){
            weaponList+=weapons[i]+" ";
        }
        return weaponList;
    }
}