本帖最后由 林国锋 于 2011-10-6 19:07 编辑  
 
this是当前类的引用吧 
super是指调用父类的构造函数 
如: 
public class Student extends SuperStudent{ 
  private int id; 
  private String name; 
  //省略setget方法 
  public Student(int id){ 
    this.id = id; 
  } 
  public Sthdent(int id,String name){ 
    this(1);// 此处调用的是当前的相对应的构架函数 
    this.name = name; 
    super(id,name,"男");// 此处就是调用父类SuperStudent中的构造函数 
  } 
} 
 
SuperStudent类 
public class SuperStudent{ 
  private int id; 
  private String name; 
  private String sex; 
 
  // 省略 set get 
   
  public SuperStudent(int id,String name,String sex){ 
    this.id = id; 
    this.name = name; 
    this.sex = sex; 
  } 
} |