有了这个大纲，我编写的代码有什么问题？ 请明确说明为什么不起作用

Question

Write the definition of a class Player containing: An instance variable name of type String , initialized to the empty String. An instance variable score of type int , initialized to zero.
A method called setName that has one parameter, whose value it assigns to the instance variable name .
A method called setScore that has one parameter, whose value it assigns to the instance variable score .
A method called getName that has no parameters and that returns the value of the instance variable name .
A method called getScore that has no parameters and that returns the value of the instance variable score .
No constructor need be defined.

 public class Player{
 private String name;
 private int score = 0;

 public void setName(String nm)
 {name = nm;}

 public void setScore(int sc)
 {score = sc;}

 public String getName() 
 {return name;}

 public int getScore()
  {return score;}
 }

thank you.

Answer 1

(I'm not going to be "explicit" in terms of just giving you the answer, but hopefully I can help you fix it for yourself...)

Well, here's the start of what you've said you're meant to do:

Write the definition of a class Player containing: An instance variable name of type String , initialized to the empty String.

Your code:

private String name;

In what way is that initialized to the empty string?

To think about it another way: what would you expect the result of calling length() on an empty string to be? What happens if you try calling it on your variable?