firstName 是  private String firstName;
      
         firstName=fullName.substring(0,a);

        编译的时候说有错误 unreachable statement
       
[b][size=4][color=FF0000]下面是代码请帮我看看，谢谢！[/[/color][/size]b]
public class Name2
{
    
    private String middleName;
    private String firstName;
    private String fullName;
    private String lastName;
   
    public Name2(String newFullName)
    {
        String newFirstName;
        String newMiddleName;
        String newLastName;
      
        fullName=newFullName;
//         firstName();
//         middleName();
//         lastName();
//         newFullName =newFirstName+newMiddleName+newLastName;
    }

    public String firstName()
    {
        int a=fullName.indexOf(" ");
        return fullName.substring(0,a);
        firstName=fullName.substring(0,a);
    }
       
    public String middleName(String newMiddleName)
    {
     int a=fullName.lastIndexOf(" ");
     int b=firstName.length();
     return fullName.substring(b,a);
     
    }