One Button in Java GUI

Swing과 JavaFX를 이용하여 하나의 버튼이 있는 GUI창 만들어보기

코드 소개

• Swing과 JavaFX를 이용하여 GUI 화면에 버튼 하나를 만들고, 버튼의 역할(버튼의 내용을 변경)을 구현한 프로그램이다.

코드

• Swing 이용

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JButton;

public class OneButtonSwing extends JFrame {
    private JPanel pane;
    private JButton bigButton;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {
            public void run() {
                try {
                    OneButtonSwing frame = new OneButtonSwing(); // generate frame
                    frame.setVisible(true); // show frame
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        });
    }

    /**
     * Create the frame.
     */
    public OneButtonSwing() {
        initialize();
    }

    private void initialize() {
        setSize(450, 300); // set frame's size, w=450, h=300
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // 

        pane = new JPanel(); // generate panel
        pane.setLayout(new BorderLayout(0, 0)); // 1*1 border layout
        setContentPane(pane); // set frame's content

        bigButton = new JButton("Push Me!!"); // generate button
        bigButton.addActionListener(new ActionListener() { // button's click action
            public void actionPerformed(ActionEvent e) {
                bigButton.setText("You Pushed!!");
            }
        });

        pane.add(bigButton, BorderLayout.CENTER); // insert button into panel, button's position is center of panel
    }
}

• JavaFX 이용

import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.Scene;
import javafx.scene.layout.BorderPane;
import javafx.scene.control.Button;
import javafx.stage.Screen;

public class OneButtonJavaFX extends Application {
    private BorderPane pane;
    private Button bigButton;

    /**
     * Launch the application.
     */
    public static void main(String[] args) {
        launch(args);
    }

    /**
     * Create the frame.
     */
    @Override
    public void start(Stage primaryStage) {
        try {
            initialize();

            Scene scene = new Scene(pane); // generate scene
            primaryStage.setScene(scene); // set stage's content
            primaryStage.show(); // show stage
        } catch(Exception e) {
            e.printStackTrace();
        }
    }

    private void initialize() {
        pane = new BorderPane(); // generate panel
        pane.setPrefSize(450, 300); // set panel's size, w=450, h=300

        bigButton = new Button("Push Me!!"); // generate button
        bigButton.setPrefWidth(Screen.getPrimary().getBounds().getWidth()); // bind button's width with stage's width
        bigButton.setPrefHeight(Screen.getPrimary().getBounds().getHeight()); // bind button's height with stage's height
        bigButton.setOnAction(e->{ // button's click action
            bigButton.setText("You Pushed Me.");
        });

        pane.setCenter(bigButton); // insert button into panel, button's position is center of panel
    }
}

실행결과

• Swing 이용

  

• JavaFX 이용