Applet Form

Submitted by Karthik on 25 November, 2011 - 22:00 
  1. import java.awt.*;
  2. import java.applet.*;
  3. import java.awt.event.*;
  4. public class appform extends Applet implements ActionListener,ItemListener
  5. {
  6.     Label lh,la,ln,lc,lsw,lf,e1,e2,e3,e4,e5,e6,e7,e8;
  7.     TextField tn,ta;
  8.     Button b1,b2;
  9.     String msg="";
  10.     CheckboxGroup cbg,cbg1;
  11.     Checkbox c1,c2,s1,s2,s3,s4;
  12.     @Override
  13.     public void init()
  14.     {
  15.         e1=new Label();
  16.         e2=new Label();
  17.         e3=new Label();
  18.         e4=new Label();
  19.         e5=new Label();
  20.         e6=new Label();
  21.         e7=new Label();
  22.         e8=new Label();
  23.         setLayout(new GridLayout(8,3));
  24.         lf=new Label();
  25.         lh=new Label("Course Registration");
  26.         ln=new Label("Enter your Name");
  27.         la=new Label("Enter your age");
  28.         lc=new Label("Select  the city");
  29.         lsw=new Label("Select Software");
  30.         tn=new TextField(25);
  31.         ta=new TextField(5);
  32.         cbg=new CheckboxGroup();
  33.         cbg1=new CheckboxGroup();
  34.         c1=new Checkbox("DELHI",cbg,false);
  35.         c2=new Checkbox("MADRAS",cbg,false);
  36.         s1=new Checkbox("ORACLE",cbg1,false);
  37.         s2=new Checkbox("VB",cbg1,false);
  38.         s3=new Checkbox("Java",cbg1,false);
  39.         s4=new Checkbox("C/C++",cbg1,false);
  40.         b1=new Button("OK");
  41.         b2=new Button("Cancel");
  42.         b1.addActionListener(this);
  43.         b2.addActionListener(this);
  44.         c1.addItemListener(this);
  45.         c2.addItemListener(this);
  46.         s1.addItemListener(this);
  47.         s2.addItemListener(this);
  48.         s3.addItemListener(this);
  49.         s4.addItemListener(this);
  50.  
  51.         add(e1);
  52.         add(lh);
  53.         add(e2);
  54.  
  55.         add(ln);
  56.         add(tn);
  57.         add(e3);
  58.  
  59.         add(la);
  60.         add(ta);
  61.         add(e4);
  62.  
  63.         add(lc);
  64.         add(c1);
  65.         add(c2);
  66.  
  67.         add(lsw);
  68.         add(s1);
  69.         add(s2);
  70.  
  71.         add(e5);
  72.         add(s3);
  73.         add(s4);
  74.  
  75.         add(b1);
  76.         add(b2);
  77.         add(lf);
  78.         add(e7);
  79.         add(e8);
  80.     }
  81.     public void itemStateChanged (ItemEvent ie)
  82.     {
  83.          repaint();
  84.     }
  85.     public void actionPerformed(ActionEvent ae)
  86.     {
  87.     String str=ae.getActionCommand();
  88.         if(str.equals("OK"))
  89.         {
  90.             String s=tn.getText();
  91.             if(s.length()>25)
  92.             {
  93.                 e7.setText("Name Should be within 25 characters");
  94.                 tn.setText("");
  95.             }
  96.             else
  97.                 e7.setText("Thank YOU");
  98.             repaint();
  99.             String age=ta.getText();
  100.             char t=age.charAt(0);
  101.             for(int v=0;v<age.length();v++)
  102.             {
  103.                 if(Character.isLetter(t)==true)
  104.                 {
  105.                     ta.setText(" ");
  106.                     e8.setText("Age Should be Numeric");
  107.                     break;
  108.                 }
  109.                 else
  110.                 {
  111.                     e8.setText(" ");
  112.                 }
  113.             }
  114.         }
  115.         if(str.equalsIgnoreCase("CANCEL"))
  116.         {
  117.             ta.setText("  ");
  118.             tn.setText(" ");
  119.             lf.setText(" ");
  120.         }
  121.     }
  122.     public void paint(Graphics g)
  123.     {
  124.         if(s1.getState()==true)
  125.         lf.setText("FEES : 3000");
  126.         if(s2.getState()==true)
  127.         lf.setText("FEES : 2400");
  128.         if(s3.getState()==true)
  129.         lf.setText("FEES : 3500");
  130.         if(s4.getState()==true)
  131.         lf.setText("FEES : 4000");
  132.     }
  133.  
  134.  
  135. }
  1. <applet code="appform"width=800 height=600></applet>