代码格式

src/main/java/com/example/tankbattle/Bullet.java

@@ -11,9 +11,7 @@ public class Bullet {
     private Dir dir;
 
     private boolean living = true;
-
+    TankFrame tf = null;
-    private TankFrame tf = null;
-
     private Group group = Group.BAD;
 
     public Bullet(int x, int y, Dir dir, Group group, TankFrame tf) {
@@ -24,6 +22,14 @@ public class Bullet {
         this.tf = tf;
     }
 
+    public Group getGroup() {
+        return group;
+    }
+
+    public void setGroup(Group group) {
+        this.group = group;
+    }
+
     public void paint(Graphics g) {
         if (!living) {
             tf.bullets.remove(this);

src/main/java/com/example/tankbattle/Tank.java

@@ -105,15 +105,14 @@ public class Tank {
         move();
     }
 
+    public void setDir(Dir dir) {
+        this.dir = dir;
+    }
 
     public void setMoving(boolean moving) {
         this.moving = moving;
     }
 
-    public void setDir(Dir dir) {
-        this.dir = dir;
-    }
-
     public void setX(int x) {
         this.x = x;
     }