Notes

package lab04;
import java.awt.event.*;
import javax.swing.*;
import java.awt.*;

public class MenuExample extends JFrame implements ActionListener{
private JMenuBar mb;
private JMenu filemenu, submenu,colormenu,editmenu;
private JMenuItem newItem1,newItem2,newItem3,newItem4,newItem5,redItem,greenItem,blueItem;
private ImageIcon icon1;
private JPanel p1;

public MenuExample() {
p1 = new JPanel();
p1.setBounds(40,60,150,150);
p1.setBackground(Color.red);


icon1 = new ImageIcon("Image/icon.png");// https://icons8.com/icons/set/package

//============ MAIN MENU BAR ======================
mb = new JMenuBar();

filemenu = new JMenu("File");
editmenu = new JMenu("Edit");
submenu = new JMenu("SubMenu");
colormenu = new JMenu("Color");

newItem1 = new JMenuItem("Item 1");
newItem2 = new JMenuItem("Item 2");
newItem3 = new JMenuItem("Item 3");
newItem4 = new JMenuItem("Item 4");
newItem5 = new JMenuItem("Item 5");

redItem = new JMenuItem("Red Item",icon1);
redItem.addActionListener(this);
blueItem = new JMenuItem("Blue Item",icon1);
blueItem.addActionListener(this);
greenItem = new JMenuItem("Green Item",icon1);
greenItem.addActionListener(this);

mb.add(filemenu);
mb.add(editmenu);

editmenu.add(colormenu);
filemenu.add(newItem1);
filemenu.add(newItem2);
filemenu.add(newItem3);

filemenu.add(submenu);
submenu.add(newItem4);
submenu.add(newItem5);

colormenu.add(redItem);
colormenu.addSeparator();
colormenu.add(blueItem);
colormenu.addSeparator(); //zuraas nemj ugnu
colormenu.add(greenItem);

this.add(p1);
this.setJMenuBar(mb);
this.setLayout(null);
this.setVisible(true);
this.setSize(400,400);
this.setTitle("Menu Example");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
if(e.getSource()==redItem) {
p1.setBackground(Color.red);
}else if(e.getSource() == blueItem) {
p1.setBackground(Color.blue);
}else if(e.getSource() == greenItem) {
p1.setBackground(Color.green);
}
}
}
//=======================================================

import java.awt.event.*;
import java.awt.*;
import javax.swing.*;

public class ScrollPane extends JFrame implements ActionListener {

private JScrollPane sp;
private JPanel p1;
private JTextArea ta1;

public ScrollPane() {
p1 = new JPanel();
p1.setBounds(0,0,180,160);
p1.setBackground(Color.red);
// p1.setLayout(new FlowLayout());

// ta1 = new JTextArea("TextArea1");
ta1 = new JTextArea(40,10);
// ta1.setBounds(0,0,80,10);
sp = new JScrollPane(p1);
sp.setBounds(40, 40, 180, 160);
p1.add(ta1);
this.add(sp);
this.setLayout(null);
this.setVisible(true);
this.setSize(400, 400);
this.setTitle("Scroll Pane Example");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub

}
}

// netbeans
//

//============================