Chain of Responsibility

design-pattern/src/ChainOfResponsibility2/Application.java

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+package ChainOfResponsibility2;
+
+public class Application {
+    public static void main(String[] args) {
+        Attack attack = new Attack(100);
+
+        Armor armor1 = new Armor(10);
+        Armor armor2 = new Armor(15);
+
+        armor1.setNextDefense(armor2);
+
+        armor1.defense(attack);
+
+        System.out.println(attack.getAmount());
+
+        Defense defense = new Defense() {
+            @Override
+            public void defense(Attack attack) {
+                int amount = attack.getAmount();
+                attack.setAmount(amount-=50);
+            }
+        };
+
+        armor2.setNextDefense(defense);
+
+        attack.setAmount(100);
+        armor1.defense(attack);
+
+        System.out.println(attack.getAmount());
+    }
+}

design-pattern/src/ChainOfResponsibility2/Armor.java

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+package ChainOfResponsibility2;
+
+public class Armor implements Defense{
+
+    private Defense nextDefense;
+    private int def;
+
+    public Armor() {
+    }
+
+    public Armor(int def) {
+        this.def = def;
+    }
+
+    public void setDef(int def) {
+        this.def = def;
+    }
+
+    @Override
+    public void defense(Attack attack) {
+        process(attack);
+        if(nextDefense != null) {
+            nextDefense.defense(attack);
+        }
+    }
+
+    private void process(Attack attack) {
+        int amount = attack.getAmount();
+        amount -= def;
+        attack.setAmount(amount);
+    }
+
+    public void setNextDefense(Defense nextDefense) {
+        this.nextDefense = nextDefense;
+    }
+}

design-pattern/src/ChainOfResponsibility2/Attack.java

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+package ChainOfResponsibility2;
+
+public class Attack {
+
+    private int amount;
+
+    public Attack(int amount) {
+        this.amount = amount;
+    }
+
+    public int getAmount() {
+        return amount;
+    }
+
+    public void setAmount(int amount) {
+        this.amount = amount;
+    }
+}

design-pattern/src/ChainOfResponsibility2/Defense.java

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+package ChainOfResponsibility2;
+
+public interface Defense {
+
+    public void defense(Attack attack);
+}