Java反射和斯卡拉類

鑑於以下斯卡拉類：Java反射和斯卡拉類

class Student (_name:String, _id:Long) { 

private var name:String = _name; 
private var id:Long = _id; 

// 2nd C'tor 
def this(_name:String) = this(_name,0); 

// 3rd C'tor 
def this(_id:Long) = this("No Name",_id); 

def printDetails() { 

    println("The student's name is : " + name); 
    println("The student's id is : " + id); 

} 

}

和下面的Java類：

public class StudentReflectionDemo { 

public static void main (String[] args) { 

    try { 
     Class cl = Class.forName("ClassesAndObjects.Student"); 
     Method[] methods = cl.getMethods(); 
     Field[] fields = cl.getFields(); 

     System.out.println("The methods of the Student class are : "); 

     for (int i = 0 ; i < methods.length; i++) { 
      System.out.println(methods[i]); 
     } 

     System.out.println("The fields of the Student class are : "); 

     for (int i = 0 ; i < fields.length; i++) { 
      System.out.println(fields[i]); 
     } 

    } 
    catch(ClassNotFoundException e) { 
     e.printStackTrace(); 
    } 


} 

}

它不正確輸出的學生類的方法，但它不打印學生類字段..

我在這裏錯過了什麼？

感謝

來源

2013-05-30 Rouki