java 深克隆实例（二）和浅克隆实例、总结

深克隆：

public class Address  implements Cloneable{

    private String street;

    public Address(String street) {
        this.street = street;
    }

    public String getStreet() {
        return street;
    }

    public void setStreet(String street) {
        this.street = street;
    }

    //Address类也要重写toString方法，不然输出是：User{age=10, name='Tom2', address=testpackage.Address2@424c0bc4}
    @Override
    public String toString() {
        return "Address{" +
                "street='" + street + '\'' +
                '}';
    }

    //深度克隆：子类也需要重写该方法
    @Override
    protected Address clone() throws CloneNotSupportedException {
        return (Address)super.clone();
    }
}