JAVA浅度克隆clone.docVIP

/** * 该类必须继承Cloneable * 实现其clone（）方法 * 修饰符 * */ public class CloneStudent implements Cloneable private int age; private String name; private CloneTeacher 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; public CloneTeacher getTeacher return teacher; public void setTeacher CloneTeacher teacher this.teacher teacher; protected Object clone throws CloneNotSupportedException return CloneStudent super.clone ; public class CloneTeacher 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; public class CloneTest public static void main String args[] throws CloneNotSupportedException CloneTeacher teacher new CloneTeacher ; teacher.setAge 40 ; teacher.setName 张老师 ; CloneStudent student1 new CloneStudent ; student1.setAge 20 ; student1.setName 王学生 ; student1.setTeacher teacher ; /** * 对象克隆，那么克隆出来的对象有两个特性 * 1 两个对象的内容是一样的 * 2 修改复制出来的对象的内容是不会改变原有对象的值的 * 3 浅度克隆仅仅复制克隆的对象，而不复制引用对象，那复制出来的对象对引用对象的修改将会改变原来的值 * */ System.out.println System.out.println student1.getAge ; System.out.println student1.getName ; CloneStudent student2 CloneStudent student1.clone ; System.out.println System.out.println student2.getAge ; System.out.println student2.getName ; System.out.println System.out.println student1.getAge ; System.out.println student1.getName ; System.out.println System.out.println student1.getTeacher .getAge ; System.out.println student1.getTeacher .getName ; student2.getTeacher .setName 李老师 ; student2.getTeacher .setAge 50 ; System.out.println System.out.println student1.getTeacher .getAge ; System.out.println student1.getTeacher .getName ; 20 王学生 20 王学生 20 王学生 40 张老师 50 李老师