Java Technology PROGRAMS in APPLETS, SWING, JAVA SERVLETS, JSP

/*  * Reading and writing powerpoint file  * and Reading and writing text file  * using Java Program  *  */ import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; public class TestPackageOutSide {     public static void main(String[] args) {               System.out.println("Out printed....");               try {                       File infile =new File("c:/1.ppt");             FileInputStream fin = new FileInputStream(infile);             FileOutputStream fout = new FileOutputStream("c:/2.ppt");             byte b[] = new byte[(int)infile.length()];             fin.read(b);             fout.write(b);       ...

import java.awt.Dimension; import java.awt.FlowLayout; import javax.swing.JApplet; import javax.swing.JButton; public class JAppletTesting extends JApplet {         FlowLayout fl = new FlowLayout(FlowLayout.LEFT);         JButton btok, btcl;     Dimension d1;     public void init() { // setting layout to FlowLayout               setLayout(fl);         d1 = new Dimension(100, 40);         btok = new JButton("OK");         btcl =new JButton("Close");                 btok.setPreferredSize(d1);         add(btok);         add(btcl);     } }

class StudentDemo {     int id;     String name;     public int getId() {         return id;     }     public void setId(int id) {         this.id = id;     }     public String getName() {         return name;     }     public void setName(String name) {         this.name = name;     }     public StudentDemo(int id, String name) {         this.id = id;         this.name = name;     }         protected void finalize()     {         System.out.println("object is removed...");     }         } public class TestGarbegeColllector {     public static void main(String[] args) {             StudentDemo ...

import java.awt.BorderLayout; import java.awt.GraphicsEnvironment; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JPanel; public class JFrameTesting extends JFrame {     JComboBox fontbox, sizebox;     Integer mysize[] = { 9,10,11,12,14,16,18,20,22,24,30,36,45,60,72};     JPanel p1 = new JPanel();     public JFrameTesting() {         GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();         String fontname[] = ge.getAvailableFontFamilyNames();         fontbox = new JComboBox(fontname);         sizebox = new JComboBox(mysize);         sizebox.setSelectedIndex(6);         add(p1,BorderLayout.SOUTH);         p1.add(fontbox);         p1.add(sizebox);                 setSiz...

import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.File; import java.io.FileReader; import javax.swing.ImageIcon; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JOptionPane; import javax.swing.JScrollPane; import javax.swing.JTextArea; public class JFrameWithMenu  extends JFrame {     JMenuBar mb ;     JMenu mfile, medit, mhelp;     JMenuItem minew, miopen, misave, miexit, miabout;     JTextArea jta;     JFileChooser fch;     JScrollPane jsp;     public JFrameWithMenu() {                 settingMenu();         jta = new JTextArea();                       jta.setText("Testing text...."); ...

import java.io.FileInputStream; import java.io.ObjectInputStream; public class ObjectReadingFromFile {     public static void main(String[] args) {         try {                     FileInputStream fin = new FileInputStream("c:/test/student.dat");                 ObjectInputStream objin = new ObjectInputStream(fin);                       StudentData sobj1 = (StudentData)objin.readObject();          StudentData sobj2 = (StudentData)objin.readObject();                  //java.util.Date myd = (java.util.Date)objin.readObject();                     System.out.println("my object creation date and time :");            // System.out.println(myd); ...

package utilpackageapplication; import java.util.ArrayList; import java.util.HashMap; import java.util.HashSet; class Student {   int sid;     String sname;     public Student(int sid, String sname) {         this.sid = sid;         this.sname = sname;     }     public int getSid() {         return sid;     }     public void setSid(int sid) {         this.sid = sid;     }     public String getSname() {         return sname;     }     public void setSname(String sname) {         this.sname = sname;     }     } public class HashMap {     public static void main(String[] args) {             Student sd1 = new Student(1,"Udit");             Stu...

import java.util.regex.Matcher; import java.util.regex.Pattern; public class PatternMatcherTesting {     public static void main(String[] args) {         // TODO code application logic here         Pattern pat = Pattern.compile("[ab]+");             Matcher mat = pat.matcher("subjeaact  caaaode : 63bb0002 Jaaaaava 4a56 PrograbbbJava mming.bbbbb.. Java ba");                 while (mat.find())         {                         System.out.println("Value is :"+ mat.group() + " found at index : " + mat.start());         }         }       }

import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.File; import java.io.FileReader; import javax.swing.JFileChooser; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JTextArea; public class JFrameWithMenu  extends JFrame {     JMenuBar mb ;     JMenu mfile, medit, mhelp;     JMenuItem minew, miopen, misave, miexit, miabout;     JTextArea jta;     JFileChooser fch;     public JFrameWithMenu() {               settingMenu();         jta = new JTextArea();               add(jta,BorderLayout.CENTER);         jta.setText("Testing text....");               setSize(400,400);         setVisib...