deep copy, swallow copy

design-pattern/src/Prototype/copy/Age.java

@@ -0,0 +1,28 @@
+package Prototype.copy;
+
+public class Age {
+
+    private int year;
+    private int value;
+
+    public Age(int year, int value) {
+        this.year = year;
+        this.value = value;
+    }
+
+    public int getYear() {
+        return year;
+    }
+
+    public void setYear(int year) {
+        this.year = year;
+    }
+
+    public int getValue() {
+        return value;
+    }
+
+    public void setValue(int value) {
+        this.value = value;
+    }
+}

design-pattern/src/Prototype/copy/Cat.java

@@ -0,0 +1,29 @@
+package Prototype.copy;
+
+public class Cat implements Cloneable{
+
+    private String name;
+    private Age age;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Age getAge() {
+        return age;
+    }
+
+    public void setAge(Age age) {
+        this.age = age;
+    }
+
+    public Cat copy() throws CloneNotSupportedException {
+        Cat cat = (Cat) this.clone();
+        cat.setAge(new Age(this.age.getYear(), this.age.getValue()));
+        return cat;
+    }
+}

design-pattern/src/Prototype/copy/Main.java

@@ -0,0 +1,21 @@
+package Prototype.copy;
+
+public class Main {
+    public static void main(String[] args) throws CloneNotSupportedException {
+
+        Cat navi = new Cat();
+        navi.setName("navi");
+        navi.setAge(new Age(2018, 3));
+
+        Cat tom = navi.copy();
+        tom.setName("tom");
+        tom.getAge().setYear(2020);
+        tom.getAge().setValue(1);
+
+        System.out.println(navi.getName());
+        System.out.println(navi.getAge().getYear());
+        System.out.println(tom.getName());
+        System.out.println(tom.getAge().getYear());
+
+    }
+}