MY LOTTERY CLASS

[Rupinder Bains]

How do you make an errr box. I have made a random lottery class , and I want to add 2 error boxes in it. I want this to occur via the OK button.
Basically, the user inserts 6 random numbers between 1 and 49 into textboxes. When press ok, computer should generate its own random numbers.
But if the user adds less then 6 numbers into text boxes, when pressed ok, and error box should appear, saying "Please enter 6 numbers"
If the user inserts numbers higher than 49, the a error box should appear saying,"Enter numbers from 1 to 49"
So far my code is like this:-

/* Rupinder Kaur Bains
*  Lottery Simulation
*  RandomLottery.java
*/
import java.awt.*;
import javax.swing.*;
import java.applet.*;
import java.awt.color.*;
import java.awt.event.*;
import java.awt.event.ActionListener.*;
import symantec.itools.multimedia.Plasma;
import java.util.Random; //for random button generator

public class RandomLottery extends JApplet{
  
 
    
    public void init(){
 
        getContentPane().setLayout(null);
        setSize(715,428);
        
        panel1.setLayout(null); //panel
        getContentPane().add(panel1);
        panel1.setBounds(0,0,715,428);
        panel1.setBackground(Color.red);//set color of panel
 
        label1.setText("RANDOM LOTTERY");//label for heading title
        Font heading = new Font("Times New Roman",Font.BOLD,40);//set font of title
        label1.setFont(heading);
        panel1.add(label1);
        label1.setBounds(150,17,400,80);
        
        
        //declare textfields
        TextField textField1 = new TextField(2);
        TextField textField2 = new TextField(2);
        TextField textField3 = new TextField(2);
        TextField textField4 = new TextField(2);
        TextField textField5 = new TextField(2);
        TextField textField6 = new TextField(2);
        TextField textField7 = new TextField(2);
        TextField textField8 = new TextField(2);
        TextField textField9 = new TextField(2);
        TextField textField10 = new TextField(2);
        TextField textField11 = new TextField(2);
        TextField textField12 = new TextField(2);
     
        
        
        
        panel1.add(textField1);//textField for users 6 Integer numbers entered
        textField1.setBounds(272,150,30,25);
        textField1.setBackground(Color.cyan);
panel1.add(textField2);
textField2.setBounds(308,150,30,25);
textField2.setBackground(Color.yellow);
panel1.add(textField3);
textField3.setBounds(344,150,30,25);
textField3.setBackground(Color.cyan);
panel1.add(textField4);
textField4.setBounds(380,150,30,25);
textField4.setBackground(Color.yellow);
panel1.add(textField5);
textField5.setBounds(416,150,30,25);
textField5.setBackground(Color.cyan);
panel1.add(textField6);
textField6.setBounds(452,150,30,25);
textField6.setBackground(Color.yellow);

panel1.add(label2);//add 2nd label for "Please enter 6 numbers"
label2.setText("Please enter 6 numbers into boxes:-");//text in label2
label2.setBounds(70,127,300,80);
Font sub = new Font("Times New Roman",Font.BOLD,13);
label2.setFont(sub);

button1.setLabel("OK");//button1 to submit numbers, press "OK"
panel1.add(button1);
button1.setBackground(java.awt.Color.lightGray);
button1.setBounds(500,147,58,32);

panel1.add(plasma1);//entertaining graphics
plasma1.setBounds(48,97,600,30);


//textfields for Random Lottery generator
panel1.add(textField7);
textField7.setBounds(272,210,30,25);
textField7.setBackground(Color.magenta);
panel1.add(textField8);
textField8.setBounds(308,210,30,25);
textField8.setBackground(Color.orange);
panel1.add(textField9);
textField9.setBounds(344,210,30,25);
textField9.setBackground(Color.magenta);
panel1.add(textField10);
textField10.setBounds(380,210,30,25);
textField10.setBackground(Color.orange);
panel1.add(textField11);
textField11.setBounds(416,210,30,25);
textField11.setBackground(Color.magenta);
panel1.add(textField12);
textField12.setBounds(452,210,30,25);
textField12.setBackground(Color.orange);


button2.setLabel("RESET");//button2 to reset whole Random Lottery game
panel1.add(button2);
button2.setBackground(java.awt.Color.lightGray);
button2.setBounds(500,210,58,32);


panel1.add(label3);//add 3rd label for "Random 'WINNING' lottery results"
label3.setText("Random 'WINNING' lottery results:-");//text in label3
label3.setBounds(67,185,300,80);
Font results = new Font("Times New Roman",Font.BOLD,13);
label3.setFont(results);

//textArea to display matching numbers
panel1.add(textArea1);
textArea1.setBounds(272,276,272,78);
panel1.add(label4);//4th label to display 'MATCHING NUMBERS'
label4.setText("MATCHING 'WINNING' NUMBERS:-");
label4.setBounds(40,276,300,80);
Font match = new Font("Times New Roman",Font.BOLD,14);
label4.setFont(match);





}



    private java.awt.Panel panel1 = new java.awt.Panel();
    private java.awt.Label label1 = new java.awt.Label();
    private java.awt.Label label2 = new java.awt.Label();
private java.awt.TextField textField1 = new java.awt.TextField();
    private java.awt.TextField textField2 = new java.awt.TextField();
private java.awt.TextField textField3 = new java.awt.TextField();
private java.awt.TextField textField4 = new java.awt.TextField();
private java.awt.TextField textField5 = new java.awt.TextField();
private java.awt.TextField textField6 = new java.awt.TextField();
private java.awt.Button button1 = new java.awt.Button();
private symantec.itools.multimedia.Plasma plasma1 = new symantec.itools.multimedia.Plasma();
private java.awt.TextField textField7 = new java.awt.TextField();
private java.awt.TextField textField8 = new java.awt.TextField();
private java.awt.TextField textField9 = new java.awt.TextField();
private java.awt.TextField textField10 = new java.awt.TextField();
private java.awt.TextField textField11 = new java.awt.TextField();
private java.awt.TextField textField12 = new java.awt.TextField();
private java.awt.Button button2 = new java.awt.Button();
private java.awt.Label label3 = new java.awt.Label();
private java.awt.TextArea textArea1 = new java.awt.TextArea();
private java.awt.Label label4 = new java.awt.Label();
   
}
  

Is anything wrong with this?
It does design the outline of the Lottery game?

[Rupinder Bains]

???LIFE WITH JAVA IS COMPLICATED

[Lance Finney]

Check out the JOptionPane class. It has several methods to show dialogs. Here the tutorial:
http://java.sun.com/docs/books/tutorial/uiswing/components/dialog.html