Notes

package lab3;

public class Main {

public static void main(String[] args) {
// TODO Auto-generated method stub
FirstFrame ff = new FirstFrame();

}

}

----------------------------------------------------





package lab3;

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



public class SecondFrame extends JFrame implements ActionListener {

private JLabel txt;
private String text;
private String text1;
private JComboBox<String> combo;
private ImageIcon icon;
String [] list = { "apple", "banana", "kiwi"};


public SecondFrame(String text) {
icon= new ImageIcon("image/download.jpg");

combo = new JComboBox<>(list);
combo.setBounds(40,80,120, 30);
combo.addActionListener(this);

this.text = text;
txt = new JLabel("here : " + this.text);
txt.setBounds(40, 40, 120, 30);

this.text1 = text1;
txt.setBounds(40, 40, 500, 500);
txt.setIcon(icon);

this.add(txt);
this.add(txt);
this.add(combo);
this.setTitle("Second Frame");
this.setLayout(null);
this.setSize(400, 600);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
}


@Override
public void actionPerformed (ActionEvent e) {
if(e.getSource()==combo) {
if(combo.getSelectedIndex()==0) {
txt.setText(combo.getSelectedItem()+" ");
}else if(combo.getSelectedIndex()==1) {
txt.setText(combo.getSelectedItem()+" ");
}else if(combo.getSelectedIndex()==2) {
txt.setText(combo.getSelectedItem()+" ");
}
}
}
}

--------------------------------

package lab3;

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

public class FirstFrame extends JFrame implements ActionListener {
private JTextField tf;
private JButton b;
private JCheckBox chb1, chb2, chb3;
private JTextArea ta;
private JRadioButton rb1, rb2, rb3;
private ButtonGroup bg;

public FirstFrame() {
bg = new ButtonGroup(); // groupleh

rb3 = new JRadioButton("C"); // radio button -negiig songohiin tuld buttongroup hiij ogno
rb3.setBounds(160, 320, 50, 30);
rb2 = new JRadioButton("B");
rb2.setBounds(100, 320, 50, 30);
rb1 = new JRadioButton("A", true);
rb1.setBounds(40, 320, 50, 30);

ta = new JTextArea(); // text area
ta.setBounds(40, 160, 160, 150);

chb1 = new JCheckBox("CS"); // checkbox- bugdiig n songoj bolno
chb1.setBounds(40, 120, 50, 30); // checkbox = radio button 2 adilhan zarchmaar ajillana
chb2 = new JCheckBox("IC");
chb2.setBounds(100, 120, 50, 30);
chb3 = new JCheckBox("SE");
chb3.setBounds(160, 120, 50, 30);

b = new JButton("Click"); // ehnii click button
b.setBounds(40, 80, 120, 30);
b.addActionListener(this);

tf = new JTextField(); //
tf.setBounds(40, 40, 120, 30);

chb1.addActionListener(this);
chb2.addActionListener(this);
chb3.addActionListener(this);
rb1.addActionListener(this);
rb2.addActionListener(this);
rb3.addActionListener(this);

bg.add(rb1);
bg.add(rb2);
bg.add(rb3);
this.add(rb1);
this.add(rb2);
this.add(rb3);
this.add(chb1);
this.add(chb2);
this.add(chb3);
this.add(b);
this.add(tf);
this.add(ta);

this.setLayout(null);
this.setSize(400, 600);
this.setVisible(true);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == b) {
String txt = tf.getText();
this.dispose();
SecondFrame sf = new SecondFrame(txt);
}
if (e.getSource() == chb1) {
if (chb1.isSelected()) {
ta.append(chb1.getText() + " checked...n");
} else {
ta.append(chb1.getText() + " unchecked...n");
}
} else if (e.getSource() == chb2) {
if (chb2.isSelected()) {
ta.append(chb2.getText() + " checked...n");
} else {
ta.append(chb2.getText() + " unchecked...n");
}
} else if (e.getSource() == chb3) {
if (chb3.isSelected()) {
ta.append(chb3.getText() + " checked...n");
} else {
ta.append(chb3.getText() + " unchecked...n");
}
}
if (e.getSource() == rb1) {
if (rb1.isSelected()) {
ta.append(rb1.getText() + " checked...n");
}
} else if (e.getSource() == rb2) {
if (rb2.isSelected()) {
ta.append(rb2.getText() + " checked...n");
}
} else if (e.getSource() == rb3) {
if (rb3.isSelected()) {
ta.append(rb3.getText() + " checked...n");
}
}
}
}