kotlin 생성자 프로퍼티?? 머임?

class RecordDream(var user: String, var count: Int) {
    val record get() = user + count
}

public final class RecordDream {
   @NotNull
   private String user;
   private int count;

   @NotNull
   public final String getRecord() {
      return this.user + this.count;
   }

   @NotNull
   public final String getUser() {
      return this.user;
   }

   public final void setUser(@NotNull String var1) {
      Intrinsics.checkNotNullParameter(var1, "<set-?>");
      this.user = var1;
   }

   public final int getCount() {
      return this.count;
   }

   public final void setCount(int var1) {
      this.count = var1;
   }

   public RecordDream(@NotNull String user, int count) {
      Intrinsics.checkNotNullParameter(user, "user");
      super();
      this.user = user;
      this.count = count;
   }
}

java 코드를 봤을 때

생성자에 있는 파라미터의 get,set이 다 만들어 진 것을 볼 수 있다.
얘는 값을 읽고 변경 모두 가능하다는 말썸~!

---

class RecordDream1_1(val user: String, val count: Int) {
    val record get() = user + count
}

public final class RecordDream1_1 {
   @NotNull
   private final String user;
   private final int count;

   @NotNull
   public final String getRecord() {
      return this.user + this.count;
   }

   @NotNull
   public final String getUser() {
      return this.user;
   }

   public final int getCount() {
      return this.count;
   }

   public RecordDream1_1(@NotNull String user, int count) {
      Intrinsics.checkNotNullParameter(user, "user");
      super();
      this.user = user;
      this.count = count;
   }
}

얘는 val로 선언을 했기 때문에 get만 만들어졌다잉

---

class RecordDream1_2(private val user: String, private val count: Int) {
    val record get() = user + count
}

public final class RecordDream1_2 {
   private final String user;
   private final int count;

   @NotNull
   public final String getRecord() {
      return this.user + this.count;
   }

   public RecordDream1_2(@NotNull String user, int count) {
      Intrinsics.checkNotNullParameter(user, "user");
      super();
      this.user = user;
      this.count = count;
   }
}

얘는 private val로 만들어졌기에 변수의 값을 바꿀 수 있는 것은 없다잉

---

public final class RecordDream2 {
   @NotNull
   private final String innerUser;
   private final int innerCount;

   @NotNull
   public final String getInnerUser() {
      return this.innerUser;
   }

   public final int getInnerCount() {
      return this.innerCount;
   }

   public RecordDream2(@NotNull String user, int count) {
      Intrinsics.checkNotNullParameter(user, "user");
      super();
      this.innerUser = user;
      this.innerCount = count;
   }
}

---

결국 밖에서 값을 변경할 수 있게 하느냐 없느냐에 따라서 어캐쓸 지 달라진다는 것인가..?!!