clone淺拷貝

clone淺拷貝：

public class Student implements Cloneable{
 int id;
 String name;
 Pro pro;
 public int getId() {
  return id;
 }
 public void setId(int id) {
  this.id = id;
 }
 public String getName() {
  return name;
 }
 
 public Student(int id, String name, Pro pro) {
  super();
  this.id = id;
  this.name = name;
  this.pro = pro;
 }
 public Pro getPro() {
  return pro;
 }
 public void setPro(Pro pro) {
  this.pro = pro;
 }
 public void setName(String name) {
  this.name = name;
 }
 
 public Object clone()
 {
  Student student=null;
  try {
   student=(Student) super.clone();
  } catch (CloneNotSupportedException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  return student;
 }

}

 

public class Pro {
 int id;
 String name;
 public Pro(int id, String name) {
  super();
  this.id = id;
  this.name = name;
 }
 public int getId() {
  return id;
 }
 public void setId(int id) {
  this.id = id;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }

}

 

@Test
 public void testStudent()
 {
  Pro pro=new Pro(1,"w1");
  Student s1=new Student(1,"wuqiang",pro);
  Student s2=(Student) s1.clone();
  s2.getPro().setId(2);
  s2.getPro().setName("w2");
  System.out.println(s1.getPro().getId()+" "+s1.getPro().getName());
 }