Java program to animate ball or moving ball using frame

import java.awt.*; import java.awt.event.*; import java.applet.*; public class movball extends Frame implements Runnable { int x,y;   Thread t;   boolean flag;   public movball()   { x=0;     y=250;     addWindowListener(new mwa(this));     t=new Thread(this);     t.start();     flag=false;   }   public void run()   { for(;;)     { try       { repaint();         x++;         Thread.sleep(100);       }       catch(InterruptedException e)       {       }       if(flag)         break;     }   }   public void paint(Graphics g)   { g.drawOval(x,y,30,30);   }   public static void main(String s[])   { movball b=new movball();     b.setSize(new Dimension(1000,600));     b.setTitle("Running Ball");     b.setVisible(true);   } } class mwa extends WindowAdapter { movball a;   public mwa(movball f)   { a=f;   }   public void windowClosing(WindowEvent e)   { a.flag=true;     a.t=null;     System.exit(0);   } } Output

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Java program to create student registration form

import java.awt.*; import java.applet.*; import java.awt.event.*; public class student extends Frame implements ActionListener {String msg;   Button b1=new Button("save");   Label l11=new Label("Student details",Label.CENTER);   Label l1=new Label("Name:",Label.LEFT);   Label l2=new Label("age:",Label.LEFT);   Label l3=new Label("Sex(M/F):",Label.LEFT);   Label l4=new Label("Address:",Label.LEFT);   Label l5=new Label("Course:",Label.LEFT);   Label l6=new Label("Semester:",Label.LEFT);   Label l7=new Label("",Label.RIGHT);   TextField t1=new TextField();   Choice c1=new Choice();   CheckboxGroup cbg=new CheckboxGroup();   Checkbox ck1=new Checkbox("Male",false,cbg);   Checkbox ck2=new Checkbox("Female",false,cbg);   TextArea t2=new TextArea("",180,90,TextArea.SCROLLBARS_VERTICAL_ONLY);   Choice course=new Choice();   Choice sem=new Choice();   Choice age=new Choice(); public student()  {addWindowListener(new myWindowAdapter());   setBackground(Color.cyan);   setForeground(Color.black);   setLayout(null);   add(l11);   add(l1);   add(l2);   add(l3);   add(l4);   add(l5);   add(l6);   add(l7);   add(t1);   add(t2);   add(ck1);   add(ck2);   add(course);   add(sem);   add(age);   add(b1);   b1.addActionListener(this);   add(b1);   course.add("BSc c.s");   course.add("BSc maths");   course.add("BSc physics");   course.add("BA English");   course.add("BCOM");   sem.add("1");   sem.add("2");   sem.add("3");   sem.add("4");   sem.add("5");   sem.add("6");   age.add("17");   age.add("18");   age.add("19");   age.add("20");   age.add("21");   l1.setBounds(25,65,90,20);   l2.setBounds(25,90,90,20);   l3.setBounds(25,120,90,20);   l4.setBounds(25,185,90,20);   l5.setBounds(25,260,90,20);   l6.setBounds(25,290,90,20);   l7.setBounds(25,260,90,20);   l11.setBounds(10,40,280,20);   t1.setBounds(120,65,170,20);   t2.setBounds(120,185,170,60);   ck1.setBounds(120,120,50,20);   ck2.setBounds(170,120,60,20);   course.setBounds(120,260,100,20);   sem.setBounds(120,290,50,20);   age.setBounds(120,90,50,20);   b1.setBounds(120,350,50,30); } public void paint(Graphics g) {g.drawString(msg,200,450);} public void actionPerformed(ActionEvent ae) {if(ae.getActionCommand().equals("save"))   {msg="Student details saved!";    setForeground(Color.red); } } public static void main(String g[]) {student stu=new student();  stu.setSize(new Dimension(500,500));  stu.setTitle("student registration");  stu.setVisible(true); } }  class myWindowAdapter extends WindowAdapter {public void windowClosing(WindowEvent we)  {   System.exit(0);  } } Output

Java program to animated text or moving text

import java.applet.*; import java.awt.*; /*<applet code="runtext" width=450 height=400> </applet>*/ public class runtext extends Applet implements Runnable  {    Thread t;    int x,y;   boolean stopflag;             public void init()              {                setBackground(Color.black);                setForeground(Color.white);                x=120;y=130;                             }             public void start()               {                 stopflag=false;                 t=new Thread(this,"one");                 t.start();                                       }             public void paint(Graphics g)               {showStatus("name of college");                 g.drawString("SS College",x,y);               }             public void stop()               {                 stopflag=true;                 t=null;               }             public void run()               {                 for(; ;)                         {                           try                             {                                     y++;x++;                                     repaint();                                     Thread.sleep(50);                                     if(stopflag) break;                             }                          catch(InterruptedException e)                           {                                     System.out.println(e);                           }                         }              } } Output

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Java program to illustrate menubar with the help of applet

import java.applet.*; import java.awt.*;  class mymenu extends Frame {             MenuBar mb;             Menu filemenu,editmenu,viewmenu;             MenuItem open,newmi,save,cut,copy;             CheckboxMenuItem toolbar,layer; public mymenu() {             mb=new MenuBar();             setMenuBar(mb);                         filemenu=new Menu("File");             editmenu=new Menu("Edit");             viewmenu=new Menu("View");             open=new MenuItem("Open");             newmi=new MenuItem("New");             save=new MenuItem("Save");             cut=new MenuItem("Cut");             copy=new MenuItem("Copy");             toolbar=new CheckboxMenuItem("Toolbar",true);             layer=new CheckboxMenuItem("Layer Window",false);             filemenu.add(open);             filemenu.add(newmi);             filemenu.add(save);             editmenu.add(cut);             editmenu.add(copy);             viewmenu.add(toolbar);             viewmenu.add(layer);             mb.add(filemenu);             mb.add(editmenu);             mb.add(viewmenu); } public static void main(String s[]) {             mymenu mn=new mymenu();              mn.setSize(new Dimension(500,500));             mn.setTitle("Menu Bar");             mn.setVisible(true); } } Output

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Java program to create login form using applet

import java.awt.*; import java.awt.event.*; import java.applet.*; public class Loginform extends Frame implements ActionListener { Label l1=new Label("user name");   Label l2=new Label("password");   Label l3=new Label(" ");   TextField t1=new TextField();   TextField t2=new TextField();   Button b= new Button("Submit");   public Loginform()   { add(l1);     add(t1);     add(l2);     add(t2);     add(b);     add(l3);     l1.setBounds(20,45,70,20);     t1.setBounds(180,45,200,20);     l2.setBounds(20,95,70,20);     t2.setBounds(180,95,200,20);     b.setBounds(310,145,70,20);     b.addActionListener(this);     t2.setEchoChar('*');     addWindowListener(new mwa());   }   public void actionPerformed(ActionEvent e)   { l3.setText("Welcome "+t1.getText());}   public static void main(String s[])   { Loginform l=new Loginform();     l.setSize(new Dimension(600,600));     l.setTitle("Login");     l.setVisible(true);   } } class mwa extends WindowAdapter { public mwa(){}   public void windowClosing(WindowEvent e)   { System.exit(0);   } } Output

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Java program to print fibonacci series upto a given number

import java.io.*; class Fibonacci { int next,curr,prev,num;             Fibonacci(int a)   { next=1;      curr=1;     prev=0;     num=a;  }   void calc()   { while(prev<=num)     { System.out.println(prev);       prev=curr;       curr=next;       next=prev+curr;  }   }   public static void main(String s[])throws IOException   { BufferedReader br=new BufferedReader(new InputStreamReader(System.in));     System.out.println("Enter the limit");     int a=Integer.parseInt(br.readLine());     Fibonacci f=new Fibonacci(a);     f.calc(); } } Output

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