2024-03-30

src/main/java/com/elex_project/examples/thread/ThreadExample.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2024. Elex. All Rights Reesrved.
+ * https://www.elex-project.com/
+ */
+
+package com.elex_project.examples.thread;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+
+public class ThreadExample {
+
+	public void something(){
+		final SwingWorker<Image[], Integer> swingWorker = new SwingWorker<Image[], Integer>() {
+			@Override
+			protected Image[] doInBackground() throws Exception {
+				Image[] images = new Image[]{};
+				// do something
+				int i=0;
+				while (i<100){
+					publish(i);
+					i++;
+				}
+				return images;
+			}
+
+			@Override
+			protected void process(List<Integer> chunks) {
+
+			}
+
+			@Override
+			protected void done() {
+
+			}
+		};
+		swingWorker.execute();
+
+		try {
+			Image[] imgs = swingWorker.get(); // 작업이 끝날 때까지 대기 상태가 된다.
+		} catch (InterruptedException | ExecutionException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	public void something2(){
+		final Timer timer = new Timer(0, new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent actionEvent) {
+
+			}
+		});
+		timer.start();
+	}
+	public static void main(String... args) {
+		// 컨텐트 패널에 버튼 등의 컴포넌트를 구성한다.
+		final JPanel contentPane = new JPanel();
+		contentPane.setBackground(Color.PINK);
+
+		// 프레임을 생성한다.
+		final JFrame jFrame = new JFrame();
+		jFrame.setTitle("Example");
+		jFrame.setSize(800, 600);
+		jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		jFrame.setContentPane(contentPane);
+
+		// 이벤트 디스패치 스레드에서 프레임을 표시한다.
+		SwingUtilities.invokeLater(() -> {
+			jFrame.setVisible(true);
+		});
+
+		// 어플리케이션 종료시에 처리할 내용은 셧다운 훅을 사용한다.
+		Runtime.getRuntime().addShutdownHook(new Thread(() -> {
+			// do something
+		}));
+
+	}
+}