【发布时间】：2018-07-22 18:17:22
【问题描述】：
我正在尝试让我的名为 ZawTennisPlayer 的程序使用构造函数和显示方法输出以下内容。 我正在使用名为 TestTennisPlayer2 的示例代码对其进行测试并获得所需的输出。 我当前的代码是：
public class ZawTennisPlayer
{
//instance variables
private String playerName;
private String country;
private int rank;
private int age;
private int wins;
private int losses;
//default constructor
public ZawTennisPlayer()
{
playerName=null;
country=null;
rank=0;
age=0;
wins=0;
losses=0;
}
//parameterized constructor
public ZawTennisPlayer(String playerName,String country)
{
this.playerName=playerName;
this.country=country;
rank=0;
age=0;
wins=0;
losses=0;
}
//parameterized constructor
public ZawTennisPlayer(String playerName,String country,int rank, int age)
{
this.playerName=playerName;
this.country=country;
this.rank=rank;
this.age=age;
wins=0;
losses=0;
}
//parameterized constructor
public ZawTennisPlayer(String playerName,String country,int rank, int age,int wins,int losses)
{
this.playerName=playerName;
this.country=country;
this.rank=rank;
this.age=age;
this.wins=wins;
this.losses=losses;
}
//all accesor and mutator method for all six fields.
public String getPlayerName()
{
return playerName;
}
public void setPlayerName(String playerName)
{
this.playerName = playerName;
}
public String getCountry()
{
return country;
}
public void setCountry(String country)
{
this.country = country;
}
public int getRank()
{
return rank;
}
public void setRank(int rank)
{
this.rank = rank;
}
public int getAge()
{
return age;
}
public void setAge(int age)
{
this.age = age;
}
public int getWins()
{
return wins;
}
public void setWins(int wins)
{
this.wins = wins;
}
public int getLosses()
{
return losses;
}
public void setLosses(int losses)
{
this.losses = losses;
}
//method to display player details
public void displayPlayer()
{
System.out.println("Player's name: " + getPlayerName());
System.out.println("Player's country: " + getCountry());
System.out.println("Player's rank: " + getRank());
System.out.println("Player's age: " + getAge());
System.out.println("Player's wins: " + getWins());
System.out.println("Player's losses: " + getLosses());
System.out.println();
}
}
但是，当此程序编译时，我收到“此类没有接受 String[] 的静态 void main 方法”的错误。当我运行它时。我知道我应该在 ZawTennisPlayer 程序的某处添加一些“public static void main(String[] args)”，但我不确定在哪里。知道如何修复程序以获得所需的输出吗？提前致谢！
我用来测试程序的示例代码“TestTennisPlayer2”是：
public class TestTennisPlayer2
{
public static void main(String[] args)
{
ZawTennisPlayer tp1 = new ZawTennisPlayer();
ZawTennisPlayer tp2 = new ZawTennisPlayer("Nick Kyrgios", "Australia");
ZawTennisPlayer tp3 = new ZawTennisPlayer("Simona Halep", "Romania", 1, 26);
ZawTennisPlayer tp4 = new ZawTennisPlayer("Novak Djokovic", "Serbia", 18, 30, 6, 6);
tp1.displayPlayer();
tp2.displayPlayer();
tp3.displayPlayer();
tp4.displayPlayer();
}
}
【问题讨论】：
-
问题不在于
ZawTennisPlayer没有public static void main方法，而在于您正在尝试运行它。不。编译它，编译TestTennisPlayer2，然后只尝试运行TestTennisPlayer2。 -
也请阅读minimal reproducible example。不需要这些屏幕截图！相反，花时间合理地格式化/缩进你的代码示例。
标签： java constructor display