Java 错误消息 - “void”调用返回整数的方法时，此处不允许输入类型
我浏览了各种论坛和网站，试图找出我出错的地方，但没有运气。
public void updatePlayerLabels()
{
if(currPlayer == 0)
lblP1Name.setText(lblP1Name.setText(myPlayers[currPlayer].getName() + " - " + myPlayers[currPlayer].getScore()));
else
lblP2Name.setText(lblP2Name.setText(myPlayers[currPlayer].getName() + " - " + myPlayers[currPlayer].getScore()));
}
该错误似乎出现在我在两个语句上调用 getScore() 方法的地方。我收到 2 条“此处不允许使用‘void’类型”消息。这是玩家类的片段。
public Player(int number, String name)
{
this.number = number;
this.name = name;
score = 0;
}
public int getScore()
{
return score;
}
据我所知，我不应该看到这个错误，因为我在构造函数中将分数设置为 0，并且在调用该方法之前构造了玩家。
另外，我在代码的其他地方使用 getScore() 方法没有任何问题，我确信这是有问题的方法，因为当我从这两行中删除它时，错误消失了。
I've had a look throughout various forums and sites trying to find out where I'm going wrong but with no luck.
public void updatePlayerLabels()
{
if(currPlayer == 0)
lblP1Name.setText(lblP1Name.setText(myPlayers[currPlayer].getName() + " - " + myPlayers[currPlayer].getScore()));
else
lblP2Name.setText(lblP2Name.setText(myPlayers[currPlayer].getName() + " - " + myPlayers[currPlayer].getScore()));
}
the error seems to appear where I call the getScore() methods on both statements. I get 2 "'void' type not allowed here" messages. Here is a snippet of the player class.
public Player(int number, String name)
{
this.number = number;
this.name = name;
score = 0;
}
public int getScore()
{
return score;
}
As far as I can tell I should not be seeing that error as I set score to 0 in the constructor and I construct the players before that method is called.
Also I use the getScore() method elsewhere in the code without any problems, I am sure this is the problematic method as when I remove it from those 2 lines the error disappears.
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您正在调用
lblP1Name.setText()两次（第二次的“结果”是调用lblP1Name.setText()），它应该是：
You are calling
lblP1Name.setText()twice (the second time with the "result" of callinglblP1Name.setText())It should be:
您的代码显示
内部设置文本调用将返回传递给外部调用的 void。这会导致错误。
Your code reads
The inner set text call will return the void that is passed to the outer call. This causes the error.
在这一部分中：
方法
setText()接收一个String并返回void，您试图设置lblP1Name的文本，但内部lblP1Name.setText将返回 void。试试这个：
In this part:
The method
setText()receives aStringand returns void, you 're trying to set the text oflblP1Namebut the innerlblP1Name.setTextwill return void.Try this instead: