Job 2 has the interface of the arithmetic (not written good night in that)

Import java.awt.*;
Import java.awt.event.ActionEvent;
Import Java.awt.event.ActionListener;
Import Java.util.Random;
Import javax.swing.*;
Class Mypanel extends Panel implements actionlistener{
JButton button;
JTextField Text1, Text2, Text3;
JLabel Label1, Label2;
public int resultnum;

Mypanel ()
{
button = new JButton ("Get topic");
Button.addactionlistener (this);
Text1 = new JTextField (5);
Text1.seteditable (FALSE);
Text2 = new JTextField (5);
Text2.seteditable (FALSE);
Text3 = new JTextField (5);
Label1 = new JLabel ("+");
Label2 = new JLabel ("=");

This.add (button);
This.add (Text1);
This.add (Label1);
This.add (TEXT2);
This.add (Label2);
This.add (TEXT3);
}

public void actionperformed (ActionEvent e) {
Random random = new random ();
int num1 = random.nextint (100);
int num2 = random.nextint (100);
Resultnum = 0;
int sizeof = Random.nextint (4);
String str = "";

Switch (sizeof)
{
Case 0:
str = "+";
Resultnum = Num1 + num2;
Break
Case 1:
str = "-";
Resultnum = num1-num2;
Break
Case 2:
str = "*";
Resultnum = Num1 * NUM2;
Break
Case 3:
str = "/";
Resultnum = num1/num2;
Break
}
Label1.settext (str);
Text1.settext (integer.tostring (NUM1));
Text2.settext (integer.tostring (num2));
}
}
public class Computerframe extends JFrame implements actionlistener{
Mypanel Panel;
JButton button1;
JLabel Label3;

Computerframe ()
{
This.settitle ("Random Calculator");
SetLayout (New FlowLayout ());
panel = new Mypanel ();
button1 = new JButton ("Confirm answer");
Button1.addactionlistener (this);
Label3 = new JLabel ();
This.add (panel);
This.add (button1);
This.add (LABEL3);
SetVisible (TRUE);
Setextendedstate (Frame.maximized_vert);
Setdefaultcloseoperation (Jframe.exit_on_close);
SetBounds (450, 300, 380, 125);
Validate ();
}

public void actionperformed (ActionEvent e) {

if (Panel.text3.getText (). Length () = = 0) {
Label3.settext ("You haven't answered yet");
}
Else
{
int result = Integer.parseint (Panel.text3.getText ());

if (Result! = Panel.resultnum)
{
Label3.settext ("You answer the wrong");
}
Else
{
Label3.settext ("You answer correctly");
}
}
}
}

}

Job 2 has the interface of the arithmetic (not written good night in that)