design patterns : strategy

design-pattern/gof/src/strategy/after/BlueLightRedLight.java

@@ -0,0 +1,12 @@
+package strategy.after;
+
+public class BlueLightRedLight {
+
+    public void blueLight(Speed speed) {
+        speed.blueLight();
+    }
+
+    public void redLight(Speed speed) {
+        speed.redLight();
+    }
+}

design-pattern/gof/src/strategy/after/Client.java

@@ -0,0 +1,10 @@
+package strategy.after;
+
+public class Client {
+
+    public static void main(String[] args) {
+        BlueLightRedLight game = new BlueLightRedLight();
+        game.blueLight(new Normal());
+        game.redLight(new Faster());
+    }
+}

design-pattern/gof/src/strategy/after/Faster.java

@@ -0,0 +1,13 @@
+package strategy.after;
+
+public class Faster implements Speed {
+    @Override
+    public void blueLight() {
+        System.out.println("무궁화꽃이");
+    }
+
+    @Override
+    public void redLight() {
+        System.out.println("피었습니다.");
+    }
+}

design-pattern/gof/src/strategy/after/Fastest.java

@@ -0,0 +1,13 @@
+package strategy.after;
+
+public class Fastest implements Speed {
+    @Override
+    public void blueLight() {
+        System.out.println("무광꼬치");
+    }
+
+    @Override
+    public void redLight() {
+        System.out.println("피어씀다");
+    }
+}

design-pattern/gof/src/strategy/after/Normal.java

@@ -0,0 +1,13 @@
+package strategy.after;
+
+public class Normal implements Speed {
+    @Override
+    public void blueLight() {
+        System.out.println("무 궁 화    꽃   이");
+    }
+
+    @Override
+    public void redLight() {
+        System.out.println("피 었 습 니  다.");
+    }
+}

design-pattern/gof/src/strategy/after/Speed.java

@@ -0,0 +1,7 @@
+package strategy.after;
+
+public interface Speed {
+
+    void blueLight();
+    void redLight();
+}

design-pattern/gof/src/strategy/before/BlueLightRedLight.java

@@ -0,0 +1,31 @@
+package strategy.before;
+
+public class BlueLightRedLight {
+
+    private int speed;
+
+    public BlueLightRedLight(int speed) {
+        this.speed = speed;
+    }
+
+    public void blueLight() {
+        if (speed == 1) {
+            System.out.println("무 궁 화    꽃   이");
+        } else if (speed == 2) {
+            System.out.println("무궁화꽃이");
+        } else {
+            System.out.println("무광꼬치");
+        }
+
+    }
+
+    public void redLight() {
+        if (speed == 1) {
+            System.out.println("피 었 습 니  다.");
+        } else if (speed == 2) {
+            System.out.println("피었습니다.");
+        } else {
+            System.out.println("피어씀다");
+        }
+    }
+}

design-pattern/gof/src/strategy/before/Client.java

@@ -0,0 +1,10 @@
+package strategy.before;
+
+public class Client {
+
+    public static void main(String[] args) {
+        BlueLightRedLight blueLightRedLight = new BlueLightRedLight(3);
+        blueLightRedLight.blueLight();
+        blueLightRedLight.redLight();
+    }
+}