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import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import java.awt.*;
import java.awt.event.*;
public class Experiment5 implements ActionListener{
JFrame frame;
JList list;
JTextField text;
public static void main(String[] args) {
Experiment5 experiment5 = new Experiment5();
experiment5.go();
}
public void go(){
frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel panel = new JPanel();
JButton button = new JButton("Click me");
button.addActionListener(this);
text = new JTextField();
String[] listEntries = {"Java", "C++", "Perl", "Python", "JavaScript", "PHP", "C#"};
list = new JList(listEntries);
list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
list.addListSelectionListener(new SelectionOne());
MyDrawPanel1 panel1 = new MyDrawPanel1();
frame.getContentPane().add(BorderLayout.SOUTH, button);
frame.getContentPane().add(BorderLayout.NORTH, text);
frame.getContentPane().add(BorderLayout.EAST, list);
frame.getContentPane().add(BorderLayout.CENTER, panel1);
frame.setSize(500, 300);
frame.setVisible(true);
}
public void actionPerformed(ActionEvent event){
int ran = (int) (Math.random() * 255);
text.setText("New random - " + ran);
frame.repaint();
}
class SelectionOne implements ListSelectionListener {
public void valueChanged(ListSelectionEvent lse) {
if(!lse.getValueIsAdjusting()){
String selection = (String) list.getSelectedValue();
System.out.println(selection);
}
}
}
}
class MyDrawPanel1 extends JPanel{
public void paintComponent(Graphics g){
int one = (int)(Math.random() * 255);
int two = (int)(Math.random() * 255);
int three = (int)(Math.random() * 255);
Color color = new Color(one, two, three);
g.setColor(color);
g.fillOval(110, 10, 200, 200);
}
}
SWING!!! Jlist, JTextField, JPanel !!! КАК УЛУЧШИТЬ ЭТОТ ПОНОС???
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