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| import java.util.ArrayList;
public class Person implements Cloneable {
private String name;
private ArrayList<Integer> books;
public Person(String name, ArrayList<Integer> books) {
this.name = name;
this.books = books;
}
public ArrayList<Integer> getBooks() {
return books;
}
public void setBooks(ArrayList<Integer> books) {
this.books = books;
}
@Override
protected Object clone() throws CloneNotSupportedException {
Object obj = super.clone();
((Person) obj).setBooks((ArrayList<Integer>) books.clone());
return obj;
}
public static void main(String[] args) {
try {
ArrayList<Integer> books = new ArrayList<>();
books.add(1);
books.add(2);
Person p1 = new Person("张三", books);
Person p2 = (Person) p1.clone();
p2.setBooks(null);
System.out.println("p1=" + p1.getBooks());
System.out.println("p2=" + p2.getBooks());
}
catch (CloneNotSupportedException e) {
e.printStackTrace();
}
}
}
|
