深度clone的简单实现

妖狐艹你老母 2022-08-23 12:54 146阅读 0赞

public class DeepClone 
    {
    	public static void main(String args[]) throws CloneNotSupportedException
    	{
    		Student student=new Student();
    		Teacher teacher=new Teacher();
    		student.setAge(20);
    		student.setName("wang xue");
    		student.setTeacher(teacher);
    		teacher.setAge(30);
    		teacher.setName("lucy");
    		Student stu=(Student)student.clone();
    		teacher.setName("lily");
    		System.out.println(stu.getAge()+" "+stu.getName()+" "+stu.getTeacher().getName()+" "+stu.getTeacher().getAge());;
    	}
    }
    class Teacher implements Cloneable
    {
    	private int age;
    	private String name;
    	public int getAge() {
    		return age;
    	}
    	public void setAge(int age) {
    		this.age = age;
    	}
    	public String getName() {
    		return name;
    	}
    	public void setName(String name) {
    		this.name = name;
    	}
    	@Override
    	public Object clone() throws CloneNotSupportedException {
    		// TODO Auto-generated method stub
    		Teacher teacher=(Teacher)super.clone();
    		return teacher;
    	}
    }
    class Student implements Cloneable
    {
    	private Teacher teacher;
    	private int age;
    	private String name;
    	public Teacher getTeacher() {
    		return teacher;
    	}
    	public void setTeacher(Teacher teacher) {
    		this.teacher = teacher;
    	}
    	public int getAge() {
    		return age;
    	}
    	public void setAge(int age) {
    		this.age = age;
    	}
    	public String getName() {
    		return name;
    	}
    	public void setName(String name) {
    		this.name = name;
    	}
    	@Override
    	public  Object clone() throws CloneNotSupportedException {
    		// TODO Auto-generated method stub
    		Object object=super.clone();//浅clone
    		Student stu=(Student)object;
    		stu.setTeacher((Teacher)stu.getTeacher().clone());//深clone
    		return stu;
    	}
    	
    }