public static void main(String[] args) { Professor professor = new Professor("beijing", 12.0); Student s1 = new Student("zhangsan", 18, professor); Student s2 = (Student) s1.clone(); System.out.println(s1); System.out.println(s2); System.out.println("**************************************"); s2.name = "lisi"; s2.age = 20; s2.professor.setAddress("shanghai"); s2.professor.setSalary(230.0); System.out.println(s1); System.out.println(s2); } } Student [name=zhangsan, age=18, Professor=Professor [address=beijing, salary=12.0]] Student [name=zhangsan, age=18, Professor=Professor [address=beijing, salary=12.0]] ************************************** Student [name=zhangsan, age=18, Professor=Professor [address=shanghai, salary=230.0]] Student [name=lisi, age=20, Professor=Professor [address=shanghai, salary=230.0]] |
深拷贝：
public class Professor2 implements Cloneable { private String address; private double salary; public Professor2(String address, double salary) { this.address = address; this.salary = salary; } public void setAddress(String address) { this.address = address; } public void setSalary(double salary) { this.salary = salary; } @Override public String toString() { return "Professor2 [address=" + address + ", salary=" + salary + "]"; } @Override public Object clone() { Professor2 o = null; try { o = (Professor2) super.clone(); } catch (CloneNotSupportedException e) { e.printStackTrace(); } return o; } } |
