3월 22일 javaFx

1. Lambda

package lambdas;

interface ILambdaEx01 {
	void lambda();
}

// 구현체 따로 만들어서 구현하기
class LambdaImplEx01 implements ILambdaEx01 {

	@Override
	public void lambda() {
		System.out.println("메서드 호출");		
	}
	
}
public class LambdaEx01 {

	public static void main(String[] args) {
		LambdaImplEx01 ex01 = new LambdaImplEx01();
		ex01.lambda();

	}

}

 

package lambdas;

interface ILambdaEx02 {
	void lambda();
}

public class LambdaEx02 {
	public static void main(String[] args) {
		ILambdaEx02 ex02 = new ILambdaEx02() {
			// 오버라이드해서 구현하기
			@Override
			public void lambda() {
				System.out.println("메서드 호출");				
			}			
		};
		
		ex02.lambda();
	}
}

 

package lambdas;

interface ILambdaEx03{
	void lambda();
}

// 람다식으로 구현하기
public class LambdaEx03 {
	public static void main(String[] args) {
		ILambdaEx03 ex03 = () -> {
			System.out.println("메서드 호출");
		};
		ex03.lambda();
	}

}

 

2. event

package events;


import javafx.application.Application;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.AnchorPane;
import javafx.scene.text.Font;
import javafx.stage.Stage;

public class EventsEx01 extends Application{

	public static void main(String[] args) {
		launch(args);
	}
	
	@Override
	public void start(Stage primaryStage) throws Exception {
		Label label = new Label("클릭");
		label.setFont(new Font(24));
		label.setLayoutX(120);
		label.setLayoutY(80);
		
		// 오버라이드로 표현
//		EventHandler eh = new EventHandler() {
//
//			@Override
//			public void handle(Event event) {
//				System.out.println("레이블 위에 마우스 포인터가 있다.");
//			}
//			
//		};
		
		// 람다식으로 표현
		EventHandler<Event> eh = (e) -> {
			System.out.println("레이블 위에 마우스 포인터가 있다.");
		};
		
		
		label.setOnMouseClicked(eh); // 클릭
//		label.setOnMouseEntered(eh); // 올리기
		
		AnchorPane anchor = new AnchorPane();
		anchor.getChildren().add(label);
		
		primaryStage.setTitle("EventEx1");
		primaryStage.setScene(new Scene(anchor, 300, 200));
		primaryStage.show();
		
	}

}

 

 

3. Scene Builder

https://gluonhq.com/products/scene-builder/

Scene Builder - Gluon

 

 

 

 

(현재 설치한 이클립스 버전에서 지원 안함)

 

 

Scene Builder로 화면 구성하기

 

 

Ex1.class

package ex1;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

public class Ex1 extends Application{

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

	@Override
	public void start(Stage primaryStage) throws Exception {
		System.out.println("현재 클래스: " + getClass());
		System.out.println("어떤 대상의 위치: " + getClass().getResource("ex1.fxml"));
		
		FXMLLoader loader = new FXMLLoader(getClass().getResource("ex1.fxml"));
		Parent form = loader.load();
		
		primaryStage.setScene(new Scene(form));
		primaryStage.setTitle("ex1");
		primaryStage.show();
		
	}

}

 

 

ex1.fxml

- Scene Builder로 구성한 화면이 xml  코드로 만들어짐

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.control.PasswordField?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.HBox?>
<?import javafx.scene.layout.VBox?>
<?import javafx.scene.text.Font?>


<HBox alignment="CENTER" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="122.0" prefWidth="381.0" spacing="10.0" xmlns="http://javafx.com/javafx/8.0.171" xmlns:fx="http://javafx.com/fxml/1">
   <children>
      <VBox alignment="CENTER_LEFT" prefHeight="102.0" prefWidth="173.0" spacing="10.0">
         <children>
            <TextField prefHeight="35.0" prefWidth="120.0" />
            <PasswordField maxWidth="190.0" prefHeight="35.0" prefWidth="120.0" />
         </children>
      </VBox>
      <VBox alignment="CENTER_LEFT" prefHeight="91.0" prefWidth="160.0">
         <children>
            <Button mnemonicParsing="false" prefHeight="82.0" prefWidth="97.0" style="-fx-background-color: #58ACFA;" text="로그인" textAlignment="CENTER" textFill="WHITE">
               <font>
                  <Font name="Dotum" size="12.0" />
               </font>
            </Button>
         </children>
      </VBox>
   </children>
</HBox>