SwingUtilities | hiro345

SwingUtilitiesのinvokeAndWaitメソッドのサンプル。Swingではイベントの投入やGUI描画に影響する値の設定は直接するのではなく、invokeAndWaitメソッドやinvokeLaterメソッドで行います。

package org.sssg.soft.sample.swingutil;

import javax.swing.JFrame;

import javax.swing.SwingUtilities;

public class Sample extends JFrame{
    public Sample() {
        super("Sample");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setBounds(100,100,200,100);
        setVisible(true);
    }
    public void createThread() {
        Thread thread = new Thread() {
            public void run() {
                try {
                    SwingUtilities.invokeAndWait(new Runnable() {
                        public void run() {
                            System.out.println(
                                "This method call by event dispatch thread" + Thread.currentThread());
                        }
                    });
                } catch (Exception e) {
                    e.printStackTrace();
                }
                System.out.println("This method call by thread. " + Thread.currentThread());
            }
        };
        thread.start();
    }

    public static void main(String[] args) {
        Sample s = new Sample();
        s.createThread();
    }
}