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Java development gui tutorial: jframe listens to form size change events and jframe creates forms
Java development gui tutorial: jframe listens to form size change events and jframe creates forms
import java.awt.event.WindowEvent;
import java.awt.event.WindowStateListener;
import javax.swing.JFrame;
public class WinFrame extends JFrame {
public WinFrame(){
this.setName("Window 窗口状态");
this.setSize(300,300);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.addWindowStateListener(new WindowStateListener () {
public void windowStateChanged(WindowEvent state) {
if(state.getNewState() == 1 || state.getNewState() == 7) {
System.out.println("窗口最小化");
}else if(state.getNewState() == 0) {
System.out.println("窗口恢复到初始状态");
}else if(state.getNewState() == 6) {
System.out.println("窗口最大化");
}
}
});
this.setVisible(true);
}
public static void main(String[] args) {
new WinFrame();
}
}Another small example of using JFrame to create a form
The window created using JFrame contains a title, minimize button, maximize button and close button
public class Test(){
public static void main(String[] args){
JFrame frame = new JFrame();
JPanel panel = new JPanel();
JTextArea textArea = new JTextArea();
panel.setLayout(new GridLayout());
textArea.setText("test");
//当TextArea里的内容过长时生成滚动条
panel.add(new JScrollPane(textArea));
frame.add(panel);
frame.setSize(200,200);
frame.setVisible(true);
}
}More java Please pay attention to the PHP Chinese website for related articles on jframe listening to form size change events and jframe creating forms in the GUI development tutorial!
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