Popular Posts
javax.net.ssl.SSLHandshakeException: Connection closed by peer in Android 5.0 Lollipop Recently, there is a error occurs when access website via ssl connection like below although it worked fine several days ago. // Enable SSL... Dump MySQL & restore $ mysqldump -u root -x --all-databases > dump.sql $ mysqldump -u root データベース名 > dump.sql $ mysql -u root -p $ mysql -u root データベ... abap naming rule 命名規則 報表程式(以列表格式輸出資料分析):Yaxxxxxx或Zaxxxxxx。用應用程式區的分類字母替換a。 任何有效字元替換x。注意SAP報表程式遵守相似的命名約定:Raxxxxxx。 任何其他ABAP/4程式(培訓程式或事務程式):SAPMYxxx或SAPMZxxx...
Stats
Reference to container in actionlistener
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class TestAction extends JFrame {

    public TestAction() {
        this.setTitle("Test Click action");
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setSize(300, 300);
        this.setLocation(200, 200);

        JButton button = new JButton("click me");
        button.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog(TestAction.this, TestAction.this.getTitle());
            }

        });
        this.getContentPane().add(button);
        this.setVisible(true);
    }

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