JavaFX(2)

Gyeomii·2022년 6월 23일
0

DDITJava

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📌 홀/짝게임

코드

public class Main5 extends Application {
	Parent root;
	Scene scene;
	Button btn;
	TextField tf_user;
	TextField tf_com;
	TextField tf_result;
	@Override
	public void start(Stage primaryStage) {
		try {
			root = FXMLLoader.load(getClass().getResource("main5.fxml"));
			scene = new Scene(root, 250, 350); //(width, height)
			btn = (Button) scene.lookup("#btn");
			tf_user = (TextField) scene.lookup("#tf_user");
			tf_com = (TextField) scene.lookup("#tf_com");
			tf_result = (TextField) scene.lookup("#tf_result");
			btn.setOnMouseClicked(new EventHandler<Event>() {
				@Override
				public void handle(Event event) {
					EvenOdd();
				}
			});
			primaryStage.setScene(scene);
			primaryStage.show();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public void EvenOdd() {
		String user = tf_user.getText();
		String com = ComRandom();
		String result ="";
		tf_com.setText(com);
		if(user.equals(com)) {
			result = "User 승리";
		}else {
			result = "COM 승리";
		}
		tf_result.setText(result);
	}
	
	public String ComRandom() {
		String com = "";
		Random rnd = new Random();
		int n = rnd.nextInt(2);
		if(n == 1) {
			com = "홀";
		}else {
			com = "짝";
		}
		return com;
	}
	public static void main(String[] args) {
		launch(args);
  • 유저와 컴퓨터의 홀 짝을 비교하는 게임
  • 컴퓨터의 홀,짝을 생성하기 위해 ComRandom메소드를 생성
  • 유저와 컴퓨터의 홀,짝을 비교하기 위해 EvenOdd메소드 생성

fxml 구조

<VBox prefHeight="315.0" prefWidth="245.0" xmlns="http://javafx.com/javafx/18" xmlns:fx="http://javafx.com/fxml/1">
	<children>
		<AnchorPane maxHeight="-1.0" maxWidth="-1.0" prefHeight="-1.0" prefWidth="-1.0" VBox.vgrow="ALWAYS">
         <children>
            <Label layoutX="26.0" layoutY="89.0" text="User" />
            <Label layoutX="25.0" layoutY="135.0" text="COM" />
            <Label layoutX="24.0" layoutY="185.0" text="Result" />
            <TextField id="tf_user" layoutX="94.0" layoutY="85.0" prefHeight="25.0" prefWidth="125.0" promptText="홀/짝" />
            <TextField id="tf_com" layoutX="94.0" layoutY="131.0" prefHeight="25.0" prefWidth="125.0" />
            <TextField id="tf_result" layoutX="94.0" layoutY="181.0" prefHeight="25.0" prefWidth="125.0" />
            <Button id="btn" layoutX="27.0" layoutY="244.0" mnemonicParsing="false" prefHeight="25.0" prefWidth="192.0" text="Play" />
            <Label layoutX="72.0" layoutY="14.0" prefHeight="47.0" prefWidth="103.0" text="홀/짝 게임" textAlignment="CENTER">
               <font>
                  <Font size="21.0" />
               </font>
            </Label>
         </children>
		</AnchorPane>
	</children>
</VBox>

실행

📌 로또번호 생성

코드

public class Main6 extends Application {
	Parent root;
	Scene scene;
	Button btn;
	Label lbl1;
	Label lbl2;
	Label lbl3;
	Label lbl4;
	Label lbl5;
	Label lbl6;

	@Override
	public void start(Stage primaryStage) {
		try {
			root = FXMLLoader.load(getClass().getResource("main6.fxml"));
			scene = new Scene(root, 250, 250); // (width, height)
			btn = (Button) scene.lookup("#btn");
			lbl1 = (Label) scene.lookup("#lbl1");
			lbl2 = (Label) scene.lookup("#lbl2");
			lbl3 = (Label) scene.lookup("#lbl3");
			lbl4 = (Label) scene.lookup("#lbl4");
			lbl5 = (Label) scene.lookup("#lbl5");
			lbl6 = (Label) scene.lookup("#lbl6");
			btn.setOnMouseClicked(new EventHandler<Event>() {
				@Override
				public void handle(Event event) {
					getLotto();
				}
			});
			primaryStage.setScene(scene);
			primaryStage.show();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public void getLotto() {
		Random random = new Random();

		int[] lottoNum = new int[6];
		int temp;

		for (int i = 0; i < lottoNum.length; i++) {
			lottoNum[i] = random.nextInt(45) + 1;
			for (int j = 0; j < i; j++) { // 중복제거
				if (lottoNum[i] == lottoNum[j]) {
					i--;
					break;
				}
			}
		}
		for (int i = 0; i < lottoNum.length; i++) { // 내림차순 정렬
			for (int j = 0; j < i; j++) {
				if (lottoNum[i] < lottoNum[j]) {
					temp = lottoNum[i];
					lottoNum[i] = lottoNum[j];
					lottoNum[j] = temp;
				}
			}
		}
			lbl1.setText(String.valueOf(lottoNum[0]));
			lbl2.setText(String.valueOf(lottoNum[1]));
			lbl3.setText(String.valueOf(lottoNum[2]));
			lbl4.setText(String.valueOf(lottoNum[3]));
			lbl5.setText(String.valueOf(lottoNum[4]));
			lbl6.setText(String.valueOf(lottoNum[5]));
	}

	public static void main(String[] args) {
		launch(args);
	}
}

fxml 구조

<VBox prefHeight="184.0" prefWidth="245.0" xmlns="http://javafx.com/javafx/18" xmlns:fx="http://javafx.com/fxml/1">
	<children>
		<AnchorPane maxHeight="-1.0" maxWidth="-1.0" prefHeight="246.0" prefWidth="245.0" VBox.vgrow="ALWAYS">
         <children>
            <Label id="lbl1" layoutX="26.0" layoutY="75.0" text="__" />
            <Label id="lbl2" layoutX="62.0" layoutY="75.0" text="__" />
            <Label id="lbl3" layoutX="94.0" layoutY="75.0" text="__" />
            <Label id="lbl4" layoutX="131.0" layoutY="75.0" text="__" />
            <Label id="lbl5" layoutX="170.0" layoutY="75.0" text="__" />
            <Label id="lbl6" layoutX="200.0" layoutY="75.0" text="__" />
            <Button id="btn" layoutX="18.0" layoutY="117.0" mnemonicParsing="false" prefHeight="25.0" prefWidth="209.0" text="Lotto 생성" />
         </children>
		</AnchorPane>
	</children>
</VBox>

실행

📌 가위바위보

코드

public class Main7 extends Application {
	Parent root;
	Scene scene;
	Button btn;
	TextField tfUser;
	TextField tfCom;
	TextField tfResult;

	@Override
	public void start(Stage primaryStage) {
		try {
			root = FXMLLoader.load(getClass().getResource("main7.fxml"));
			scene = new Scene(root, 250, 350); // (width, height)
			btn = (Button) scene.lookup("#playButton");
			tfUser = (TextField) scene.lookup("#tfUser");
			tfCom = (TextField) scene.lookup("#tfCom");
			tfResult = (TextField) scene.lookup("#tfResult");
			btn.setOnMouseClicked(new EventHandler<Event>() {
				@Override
				public void handle(Event event) {
					RSP();
				}
			});
			primaryStage.setScene(scene);
			primaryStage.show();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public void RSP() {
		String user = tfUser.getText();
		String com = ComRandom();
		String result = "";
		tfCom.setText(com);
		if (user.equals(com)) {
			result = "비김";
		} else if (user.equals("가위") && com.equals("보")
				|| user.equals("바위") && com.equals("가위")
				|| user.equals("보") && com.equals("바위")) {
			result = "USER 승리";
		} else {
			result = "COM 승리";
		}
		tfResult.setText(result);
	}

	public String ComRandom() {
		String com = "";
		Random rnd = new Random();
		int n = rnd.nextInt(3);
		if (n == 0) {
			com = "가위";
		} else if (n == 1) {
			com = "바위";
		} else {
			com = "보";
		}
		return com;
	}

	public static void main(String[] args) {
		launch(args);
	}
}

fxml 구조

<VBox prefHeight="315.0" prefWidth="245.0" xmlns="http://javafx.com/javafx/18" xmlns:fx="http://javafx.com/fxml/1">
	<children>
		<AnchorPane maxHeight="-1.0" maxWidth="-1.0" prefHeight="-1.0" prefWidth="-1.0" VBox.vgrow="ALWAYS">
         <children>
            <Label layoutX="26.0" layoutY="89.0" text="User" />
            <Label layoutX="25.0" layoutY="135.0" text="COM" />
            <Label layoutX="24.0" layoutY="185.0" text="Result" />
            <TextField id="tfUser" layoutX="94.0" layoutY="85.0" prefHeight="25.0" prefWidth="125.0" promptText="가위/바위/보" />
            <TextField id="tfCom" layoutX="94.0" layoutY="131.0" prefHeight="25.0" prefWidth="125.0" />
            <TextField id="tfResult" layoutX="94.0" layoutY="181.0" prefHeight="25.0" prefWidth="125.0" />
            <Button id="playButton" layoutX="27.0" layoutY="244.0" mnemonicParsing="false" prefHeight="25.0" prefWidth="192.0" text="Play" />
            <Label layoutX="67.0" layoutY="14.0" prefHeight="47.0" prefWidth="111.0" text="가위바위보" textAlignment="CENTER">
               <font>
                  <Font size="21.0" />
               </font>
            </Label>
         </children>
		</AnchorPane>
	</children>
</VBox>

실행

📌 별찍기

코드

public class Main8 extends Application {
	Parent root;
	Scene scene;
	Button btn;
	TextField tf1;
	TextField tf2;
	TextArea ta;

	@Override
	public void start(Stage primaryStage) {
		try {
			root = FXMLLoader.load(getClass().getResource("main8.fxml"));
			scene = new Scene(root, 400, 600); // (width, height)
			btn = (Button) scene.lookup("#btn");
			tf1 = (TextField) scene.lookup("#tf1");
			tf2 = (TextField) scene.lookup("#tf2");
			ta = (TextArea) scene.lookup("#ta");
			btn.setOnMouseClicked(new EventHandler<Event>() {
				@Override
				public void handle(Event event) {
					shiningStar();
				}
			});
			primaryStage.setScene(scene);
			primaryStage.show();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public void shiningStar() {
		int n1 = Integer.parseInt(tf1.getText());
		int n2 = Integer.parseInt(tf2.getText());
		String result = drawStar(n1, n2);
		ta.setText(result);
	}

	public String drawStar(int n1, int n2) {
		String result = "";
		if (n1 < n2) {
			for (int i = n1; i <= n2; i++) {
				for (int j = 1; j <= i; j++) {
					result += "*";
				}
				result += "\n";
			}
		} else if (n1 > n2) {
			for (int i = 1; i <= n1 - n2 + 1; i++) {
				for (int j = n1; j >= i; j--) {
					result += "*";
				}
				result += "\n";
			}
		}
		return result;
	}

	public static void main(String[] args) {
		launch(args);
	}
}

fxml 구조

<VBox prefHeight="470.0" prefWidth="370.0" xmlns="http://javafx.com/javafx/18" xmlns:fx="http://javafx.com/fxml/1">
	<children>
		<AnchorPane maxHeight="-1.0" maxWidth="-1.0" prefHeight="441.0" prefWidth="469.0" VBox.vgrow="ALWAYS">
         <children>
            <Label layoutX="60.0" layoutY="72.0" text="첫 별 수" />
            <Label layoutX="60.0" layoutY="112.0" text="끝 별 수" />
            <TextField id="tf1" layoutX="135.0" layoutY="68.0" />
            <TextField id="tf2" layoutX="135.0" layoutY="108.0" />
            <Button id="btn" layoutX="64.0" layoutY="156.0" mnemonicParsing="false" prefHeight="25.0" prefWidth="238.0" text="별빛이 내린다" />
            <TextArea id="ta" layoutX="64.0" layoutY="208.0" prefHeight="234.0" prefWidth="238.0" />
            <Label layoutX="60.0" layoutY="8.0" prefHeight="41.0" prefWidth="238.0" text="Shining Star~">
               <font>
                  <Font size="21.0" />
               </font>
            </Label>
         </children>
		</AnchorPane>
	</children>
</VBox>

실행 (1)

실행(2)

📌 전화기

코드

public class Main9 extends Application {
	Parent root;
	Scene scene;
	Button btn1;
	Button btn2;
	Button btn3;
	Button btn4;
	Button btn5;
	Button btn6;
	Button btn7;
	Button btn8;
	Button btn9;
	Button btn0;
	Button call;
	TextField tf;

	@Override
	public void start(Stage primaryStage) {
		try {
			root = FXMLLoader.load(getClass().getResource("main9.fxml"));
			scene = new Scene(root, 300, 500); // (width, height)
			btn1 = (Button) scene.lookup("#btn1");
			btn2 = (Button) scene.lookup("#btn2");
			btn3 = (Button) scene.lookup("#btn3");
			btn4 = (Button) scene.lookup("#btn4");
			btn5 = (Button) scene.lookup("#btn5");
			btn6 = (Button) scene.lookup("#btn6");
			btn7 = (Button) scene.lookup("#btn7");
			btn8 = (Button) scene.lookup("#btn8");
			btn9 = (Button) scene.lookup("#btn9");
			btn0 = (Button) scene.lookup("#btn0");
			call = (Button) scene.lookup("#btnCall");
			tf = (TextField) scene.lookup("#tf");
			
			btn1.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {input(event);}});
			btn2.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {input(event);}});
			btn3.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {input(event);}});
			btn4.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {input(event);}});
			btn5.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {input(event);}});
			btn6.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {input(event);}});
			btn7.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {input(event);}});
			btn8.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {input(event);}});
			btn9.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {input(event);}});
			btn0.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {input(event);}});

			call.setOnMouseClicked(new EventHandler<Event>() {public void handle(Event event) {calling();}});
			
			primaryStage.setScene(scene);
			primaryStage.show();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	public void input(Event event){ 
		Button temp = (Button) event.getSource(); 
		tf.appendText(temp.getText()); 
		}
	
	public void calling() {
		Alert alert = new Alert(AlertType.INFORMATION);
		alert.setTitle("Calling...");
		alert.setHeaderText("Calling to " + tf.getText());
		alert.setContentText("Please Wait to Connect");
		alert.show();
	}
	
	public static void main(String[] args) {
		launch(args);
	}
}

fxml 구조

<VBox prefHeight="363.0" prefWidth="291.0" xmlns="http://javafx.com/javafx/18" xmlns:fx="http://javafx.com/fxml/1">
	<children>
		<AnchorPane maxHeight="-1.0" maxWidth="-1.0" prefHeight="441.0" prefWidth="469.0" VBox.vgrow="ALWAYS">
         <children>
            <Button id="btn1" layoutX="48.0" layoutY="84.0" mnemonicParsing="false" prefHeight="47.0" prefWidth="55.0" text="1" />
            <TextField id="tf" alignment="CENTER_RIGHT" layoutX="48.0" layoutY="36.0" prefHeight="25.0" prefWidth="197.0" />
            <Button id="btn2" layoutX="121.0" layoutY="84.0" mnemonicParsing="false" prefHeight="47.0" prefWidth="55.0" text="2" />
            <Button id="btn3" layoutX="193.0" layoutY="84.0" mnemonicParsing="false" prefHeight="47.0" prefWidth="55.0" text="3" />
            <Button id="btn4" layoutX="48.0" layoutY="145.0" mnemonicParsing="false" prefHeight="47.0" prefWidth="55.0" text="4" />
            <Button id="btn7" layoutX="48.0" layoutY="205.0" mnemonicParsing="false" prefHeight="47.0" prefWidth="55.0" text="7" />
            <Button id="btn5" layoutX="121.0" layoutY="145.0" mnemonicParsing="false" prefHeight="47.0" prefWidth="55.0" text="5" />
            <Button id="btn6" layoutX="193.0" layoutY="145.0" mnemonicParsing="false" prefHeight="47.0" prefWidth="55.0" text="6" />
            <Button id="btn8" layoutX="121.0" layoutY="205.0" mnemonicParsing="false" prefHeight="47.0" prefWidth="55.0" text="8" />
            <Button id="btn9" layoutX="193.0" layoutY="205.0" mnemonicParsing="false" prefHeight="47.0" prefWidth="55.0" text="9" />
            <Button id="btn0" layoutX="48.0" layoutY="265.0" mnemonicParsing="false" prefHeight="47.0" prefWidth="55.0" text="0" />
            <BorderPane layoutX="108.0" layoutY="263.0" prefHeight="54.0" prefWidth="153.0">
               <center>
                  <Button id="btnCall" mnemonicParsing="false" prefHeight="47.0" prefWidth="118.0" text="CALL" BorderPane.alignment="CENTER" />
               </center>
            </BorderPane>
         </children>
		</AnchorPane>
	</children>
</VBox>
  • Event 객체를 이용하면 내가 실행한 이벤트가 일어난 요소가 무엇인지 반환받을 수 있다.
public void input(Event event){ 
		Button temp = (Button) event.getSource(); 
		tf.appendText(temp.getText()); 
	}
  • Event객체의 event.getSource() 를 하면 Button이 리턴된다.
  • 리턴된 값을 Button으로 캐스팅한뒤 Button객체에 담으면 내가 누른 버튼이 변수에 담긴다.
  • 그 버튼을 getText()하여 텍스트 값을 가져올 수 있다.

Alert

public void calling() {
		Alert alert = new Alert(AlertType.INFORMATION);
		alert.setTitle("Calling...");
		alert.setHeaderText("Calling to " + tf.getText());
		alert.setContentText("Please Wait to Connect");
		alert.show();
	}
  • Alert를 사용하면 팝업창을 띄울 수 있다.
  • AlertType으로 타입을 정해줄 수 있다.(ERROR, INFORMATION, NONE 등)
  • NONE으로 설정할 경우 팝업창을 끌 수 없으므로 주의.

실행

  • 번호를 입력하고 CALL을 누르면 알림팝업이 뜬다.

📌 배수의 합

코드

public class MainA extends Application {
	Parent root;
	Scene scene;
	Button btn;
	TextField tf1;
	TextField tf2;
	TextField tf3;
	TextField tf4;

	@Override
	public void start(Stage primaryStage) {
		try {
			root = FXMLLoader.load(getClass().getResource("mainA.fxml"));
			scene = new Scene(root, 800, 150); // (width, height)
			btn = (Button) scene.lookup("#btn");
			tf1 = (TextField) scene.lookup("#tf1");
			tf2 = (TextField) scene.lookup("#tf2");
			tf3 = (TextField) scene.lookup("#tf3");
			tf4 = (TextField) scene.lookup("#tf4");
			btn.setOnMouseClicked(new EventHandler<Event>() {
				public void handle(Event event) {
					calc();
				}
			});
			primaryStage.setScene(scene);
			primaryStage.show();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public void calc() {
		int n1 = Integer.parseInt(tf1.getText());
		int n2 = Integer.parseInt(tf2.getText());
		int n3 = Integer.parseInt(tf3.getText());
		int result = 0;
		for (int i = n1; i <= n2; i++) {
			if (i % n3 == 0) {
				result += i;
			}
		}
		String str = String.valueOf(result);
		tf4.setText(str);
	}

	public static void main(String[] args) {
		launch(args);
	}
}

fxml 구조

<VBox prefHeight="181.0" prefWidth="712.0" xmlns="http://javafx.com/javafx/18" xmlns:fx="http://javafx.com/fxml/1">
   <children>
      <AnchorPane prefHeight="271.0" prefWidth="638.0">
         <children>
            <Label layoutX="125.0" layoutY="78.0" text="에서" />
            <Label layoutX="259.0" layoutY="78.0" text="까지" />
            <Button id="btn" layoutX="400.0" layoutY="74.0" mnemonicParsing="false" text="의 배수의 합은" />
            <TextField id="tf1" layoutX="38.0" layoutY="74.0" prefHeight="25.0" prefWidth="75.0" />
            <TextField id="tf2" layoutX="167.0" layoutY="74.0" prefHeight="25.0" prefWidth="75.0" />
            <TextField id="tf3" layoutX="305.0" layoutY="74.0" prefHeight="25.0" prefWidth="75.0" />
            <TextField id="tf4" layoutX="515.0" layoutY="74.0" />
         </children>
      </AnchorPane>
   </children>
</VBox>

실행

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Gyeomii
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이전 포스트

GUI (JavaFX)

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