而不是返回类名，而是返回内存地址

Question

我试图让2支球队互相比赛。当我说团队1.玩（团队2）时，我称之为;当 i 生成的数字小于 0.5 时，team2 应获胜，如果大于 0.5，则团队 1 应获胜。当团队 1 获胜时，它会正确显示为尼克斯，但当团队 2 获胜时，它会显示内存地址。我怎么能让它正确地说网是赢的，而不是team@78987neu73

public class teams{
    public static void main(String [] argv){
        team team1 = new team("knicks");
        team team2 = new team("nets");
        team1.lose();
        team2.win();
        team2.lose();
        team2.printrecord();
        team1.play(team2);
    }//main
}//teams

class team{
    int wins; 
    int losses;
    String name;

    public team(String n){
        name = n;
        wins = losses = 0;
    }//constructor

    public void lose(){
        losses++;
    }//losses

    public void win(){
        wins++;
    }//wins

    public void printrecord(){
        System.out.println("W-L: " +wins+"-"+losses);
    }

    public void play(team j){
        if((Math.random())<0.5){
            System.out.println("The "+j+" Have Won!");
        }//if
        else 
            System.out.println("The "+name+" Have Won!");
    }

}

Answer 1

public void play(team j){
    if((Math.random())<0.5){
        System.out.println("The "+j+" Have Won!");
    }//if
    else 
        System.out.println("The "+name+" Have Won!");
}

在这里，“j”是一个对象，而不是一个字符串。使用 j.name 而不是 j。

Answer 2

您直接输入了j。尝试使用以下代码

public void play(team j){
        if((Math.random())<0.5){
            System.out.println("The "+j.name+" Have Won!");
        }//if
        else 
            System.out.println("The "+this.name+" Have Won!");
    }

Answer 3

您需要在团队类中进行以下两个修改

public String getName() {
    return name;
}

public void play(team j){
    if((Math.random())<0.5){
        System.out.println("The "+j.getName()+" Have Won!");
    }//if
    else 
        System.out.println("The "+name+" Have Won!");
}