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3.ÔÚÅÉÉúÀàÖÐʵÏÖCloneable½Ó¿Ú¡£
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package com.test;   
  
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//JavaÖжÔÏóµÄ¿Ë¡,ΪÁË»ñÈ¡¶ÔÏóµÄÒ»·Ý¿½±´£¬ÎÒÃÇ¿ÉÒÔÀûÓÃObjectÀàµÄclone()·½·¨¡£±ØÐëÒª×ñÑ­ÏÂÃæÈýµã   
//1.ÔÚÅÉÉúÀàÖи²¸Ç»ùÀàµÄclone()·½·¨£¬²¢ÉùÃ÷Ϊpublic¡¾ObjectÀàÖеÄclone()·½·¨ÎªprotectedµÄ¡¿¡£   
//2.ÔÚÅÉÉúÀàµÄclone()·½·¨ÖУ¬µ÷ÓÃsuper.clone()¡£   
//3.ÔÚÅÉÉúÀàÖÐʵÏÖCloneable½Ó¿Ú¡£   
  
//[color=red]ObjectÀàÀïµÄclone·½·¨ÊÇdz¸´ÖÆ£¨Ç³¿Ë¡£©[/color]public class CloneTest {   
  
    public static void main(String[] args) throws Exception{   
        //teacher¶ÔÏ󽫱»clone³öÀ´µÄStudent¶ÔÏó¹²Ïí.   
        Teacher teacher = new Teacher();   
        teacher.setAge(40);   
        teacher.setName("Teacher zhang");   
           
        Student student1 = new Student();   
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