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Write a Java program using servlet for email registration with userid, password, name, address fields and display the details on next page.

Write a Java program using servlet for email registration with userid, password, name, address fields and display the details on next page. Program: import java.io.*; import java.net.*; import java.util.*; import javax.servlet.*; import javax.servlet.http.*; public class User extends HttpServlet { protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException{ resp.setContentType("Text/http:charset=UTF-8"); PrintWriter out = resp.getWriter(); out.print("<html>"); out.print("<head>"); out.print("<title>Today</title>"); out.print("</head>"); out.print("<body>"); out.print("<br>UserId="+resp.getParameter("userid")); out.print("<br>Password="+resp.getParameter("password")); out.print("<br>Name=...
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Write a Java program to read n integers into LinkedList collection. Do the following operations. Display only negative integers and delete last element.

Write a Java program to read n integers into LinkedList collection. Do the following operations. Display only negative integers and delete last element. Program: import java.io.*; import java.util.*; class LinkedListInt { public static void main(String args[]) throws IOException { LinkedList list = new LinkedList(); int i,n,x; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.println("How many integers:"); n = Integer.parseInt(br.readLine()); for(i=0;i<n;i++){ System.out.println("Enter Number:"); x = Integer.parseInt(br.readLine()); list.add(x); } Iterator itr = list.iterator(); while(itr.hasNext()){ Integer y = (Integer)itr.next(); int a = (int)y; if(a<0){ System.out.println("Negative number:"+a); } } System.out.pri...
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Write a Java program to accept names of n students and insert into LinkedList. Display the contents of list using Iterator and also Display the content in reverse order using ListIterator.

Write a Java program to accept names of n students and insert into LinkedList. Display the contents of list using Iterator and also Display the content in reverse order using ListIterator. Program: import java.io.*; import java.util.*; class ReverseLinkedList { public static void main(String args[]) throws IOException { LinkedList students = new LinkedList(); String str; int i, n; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Enter how many names:"); n = Integer.parseInt(br.readLine()); for(i=0;i<n;i++){ System.out.println("Enter the names of students:"); str = br.readLine(); students.add(str); } Iterator itr = students.iterator(); System.out.println("Content of LinkedList using Iterator"); while(itr.hasNext()){ System.out.println(itr.next()); } ...
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Write a Java program to read n strings and insert into ArrayList collection. Display the elements of collection in reverse order.

Write a Java program to read n strings and insert into ArrayList collection. Display the elements of collection in reverse order. Program: import java.io.*; import java.util.*; class ReverseArrayList { public static void main(String args[]) throws IOException { ArrayList<String> strList = new ArrayList<String>(); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); int i,n; String str; System.out.println("Enter how many strings:"); n=Integer.parseInt(br.readLine()); for(i=0;i<n;i++){ System.out.println("Enter string:"); str = br.readLine(); strList.add(str); } Collections.reverse(strList); System.out.println("Reverse Order List:"+strList); } }
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Write a Java program to design a screen with two textbox and start button. Clicking on start button should start two threads printing 1 to 100 in two textbox.

Write a Java program to design a screen with two textbox and start button. Clicking on start button should start two threads printing 1 to 100 in two textbox. Program: import java.io.*; import java.awt.*; import java.awt.event.*; import java.applet.*; import javax.swing.*; public class ThreadBox extends JApplet implements Runnable, ActionListener { TextArea ta1, ta2; Button btnStart; Thread t1, t2; public void init(){ ta1 = new TextArea(1,20); ta2 = new TextArea(1,20); btnStart = new Button("Start"); setLayout(new FlowLayout()); btnStart.addActionListener(this); add(ta1); add(ta2); add(btnStart); } public void run(){ int i; String str = Thread.currentThread().getName(); if(str.equals("First")){ for(i=1;i<=100;i++){ try{ ta1.append(" "+i) t1.sleep(500); ...
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Write a Java program Design a screen with two buttons start thread and stop thread. Clicking on start it should start printing "Thread running" until stop button is pressed.

Write a Java program Design a screen with two buttons start thread and stop thread. Clicking on start it should start printing "Thread running" until stop button is pressed. Program: import java.io.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; public class ThreadRun extends JFrame implements Runnable, ActionListener { int i,j; String str, msg = "Thread running"; Thread t; JButton btnStart, btnStop; JPanel panel; public ThreadRun() { Container c = getContentPane(); setDefaultCloseOperation(EXIT_ON_CLOSE); t = new Thread(this); panel = new JPanel(); btnStart = new JButton("Start Thread"); btnStop = new JButton("Stop Thread"); panel.add(btnStart); panel.add(btnStop); btnStart.addActionListener(this); btnStop.addActionListener(this); c.add(panel); setSize(500,600); setVisible(true); j=8...
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Write a Java program to display "Hello Java" 50 times using multithreading.

Write a Java program to display "Hello Java" 50 times using multithreading. Program: import java.lang.*; class HelloThread extends Thread { public HelloThread(String name) { super(name); } public void run() { try { for(int i=0;i<25;i++){ System.out.println(Thread.currentThread().getName()+"Hello"); sleep(500); } } catch(InterruptedException ie){ System.out.println(ie); } } } public class ThreadMain { public static void main(String args[]){ HelloThread t = new HelloThread("My Thread"); t.start(); try{ for(int i=0;i<25;i++){ System.out.println(Thread.currentThread().getName()+"Hello"); Thread.sleep(500); } } catch(InterruptedException e) { System.out.println(e); } } }
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Write a Java program which will generate threads to display 10 terms of Fibonacci Series and to display 1 to 20 in Reverse order.

Write a Java program which will generate threads to display 10 terms of Fibonacci Series and to display 1 to 20 in Reverse order. Program: import java.lang.*; class FibonacciReverse extends Thread{ String str; FibonacciReverse(String s){ str = s; setName(str); start(); } public void run() { int a=1,b=1,i,j; int c=a+b; try { for(i=0;i<=10;i++) { a=b; b=c; c=a+b; System.out.println(c); sleep(500); } } catch(InterruptedException e) { System.out.println(e); } try { for(j=20;j>=1;j--) { System.out.println(j); sleep(500); } } catch (InterruptedException e){ System.out.println(e); } } } class ThreadMain { public static void main(String args[]){ FibonacciReverse t1 = new Fibonacc...
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Write a Java program which will create two child threads by implementing Runnable interface. One thread will print even numbers from 1 to 50 and other display vowels.

Write a Java program which will create two child threads by implementing Runnable interface. One thread will print even numbers from 1 to 50 and other display vowels. Program: import java.io.*; import java.util.*; public class EvenNumberVowel implements Runnable { String name; Thread t; EvenNumberVowel(String str) { name = str; t = new Thread(this, name); t.start(); } public void run() { name = Thread.currentThread().getName(); if(name.equals("First")) { for(int i=1;i<=50;i++){ try { if(i%2==0) { System.out.println("First:"+i); t.sleep(500); } } catch(InterruptedException ie) { System.out.println(ie); } } } else if(name.equals("Second")) { char vowels[] = {'A','E','I...
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Write a Java program to accept number from user and Calculate factorial of given number and Also check whether given number is prime or not. (Use Thread)

Write a Java program to accept number from user and Calculate factorial of given number and Also check whether given number is prime or not. (Use Thread) Program: import java.io.*; import java.lang.*; class FactPrime extends Thread { String str; int num1, num2, fact=1, flag=1, i; FactPrime(String s, int n) { num1 = n; str = s; setName(str); start(); } public void run() { if(str.equals("First")) { try { for(i=1; i<=num1; i++) { fact = fact*i; sleep(500); } System.out.println("Factorial: "+fact); } catch (InterruptedException e) { System.out.println(e); } } else if(str.equals("Second")) { try { for(i=2;i<num1;i++) { if(num1%i==0){ flag = 0; bre...
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Write a Java Program to insert the details of Actor(ano, name, movie) into database and display result in Uppercase.

Write a Java Program to insert the details of Actor(ano, name, movie) into database and display result in Uppercase. Program: import java.sql.*; import java.io.*; class Actor { public static void main(String args[]) throws SQLException, ClassNotFoundException, IOException { String name, movie; int ano; char ch; BufferedReader br; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); COnnection con = DriverManager.getConnection("jdbc:odbc:actorDSN"); do { PreparedStatement stmt = con.prepareStatement("insert into actor values(?,?,?)"); br = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Enter Actor No:"); ano = Integer.parseInt(br.readLine()); System.out.println("Enter Name:"); name = br.readLine(); System.out.println("Enter Movie Name:"); m...
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Write a Java program to display the record of Student(rollNo, name, marks) on the screen by selecting rollno from the choice component.

Write a Java program to display the record of Student(rollNo, name, marks) on the screen by selecting rollno from the choice component. Program: import java.awt.*; import java.awt.event.*; import java.sql.*; import java.io.*; public class Student extends Frame implements ActionListener { Choice rollNo; Connection con; Statement stmt; ResultSet rs; String sql; public Student() throws SQLException, ClassNotFoundException { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); con = DriverManager.getConnection("jdbc:odbc:patientDSN"); stmt = con.createStatement(); rs.executeQuery("Select * from student"); setSize(300,200); setVisible(true); setLayout(new FlowLayout()); addWindowListener(new WClose()); rollNo.ItemListener(this); while(rs.next()){ rollNo.addItem(String.valueOf(rs.getInt(1))); } add(rollNo); } stmt.close()...
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Write a Java program to accept the details of patient(pno, pname) from user and insert it into the database, display it and delete the record of entered pno from the table

Write a Java program to accept the details of patient(pno, pname) from user and insert it into the database, display it and delete the record of entered pno from the table Program: import java.io.*; import java.sql.*; import java.awt.*; import java.awt.event.*; public class Patient extends Frame implements ActionListener { Label labelPNo, labelPName; TextField textPNo, textPName; Button btnAdd, btnDelete; String sql; Statement stmt; Connection con; public Patient() throws SQLException, ClassNotFoundException { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); con = DriverManager.getConnection("jdbc:odbc:patientDSN"); setLayout(new FlowLayout()); setSize(300,200); labelPNo = new Label("Patient No:"); labelPName = new Label("Patient Name:"); textPNo = new TextField(20); textPName = new TextField(20); btnAdd = new Button("Add"); ...
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Write a Java program to accept the empno from user and update the salary of employee and display the updated record on the screen. Employee having fields empno, ename & salary.

Write a Java program to accept the empno from user and update the salary of employee and display the updated record on the screen. Employee having fields empno, ename & salary. Program: import java.sql.*; import java.io.*; class Employee { public static void main(String args[]) { Connection con; Statement stmt; ResultSet rs; BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); try { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); con = DriverManager.getConnection("jdbc:odbc:employeeDSN"); stmt = con.createStatement(); System.out.println("Enter Employee No:"); int empno = Integer.parseInt(br.readLine()); System.out.println("Enter new Salary of Employee:"); int salary = Integer.parseInt(br.readLine()); stmt.executeUpdate("update employee set salary = "+salary+" wh...
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Write a Java program to accept details of Doctor(dno, dname, salary) from the user and insert it into the database(Use PreparedStatement class and AWT).

Write a Java program to accept details of Doctor(dno, dname, salary) from the user and insert it into the database(Use PreparedStatement class and AWT). Program: import java.io.*; import java.sql.*; import java.awt.*; import java.awt.event.*; import javax.swing.JOptionPane; public class Doctor extends Frame implements ActionListener { Label labelDNo, labelDName, labelSalary; TextField textDNo, textDName, textSalary; Button btnAdd; btnExit; public Doctor() { labelDNo = new Label("Doctor No:"); labelDName = new Label("Doctor Name:"); labelSalary = new Label("Doctor Salary:"); textDNo = new TextField(20); textDName = new TextField(20); textSalary = new TextField(20); btnAdd = new Button("Add"); btnExit = new Button("Exit"); setLayout(new GridLayout(4,2)); add(labelDNo); add(textDNo); add(labelDName); add(textDN...
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Write a Menu driven program in java for Insert Record into Table,Update the existing Record and Display all records from the table

Write a Menu driven program in java for the following: 1. Insert Record into Table 2. Update the existing Record 3. Display all records from the table  Program: import java.sql.*; import java.io.*; public class MenuRec { public statuc void main(String args[])throws SQLException, ClassNotFoundException, IOException { int ch,rollNo,marks,k; String name; String sql; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); COnnection con = DriverManager.getConnection("jdbc:odbc:MyDSN"); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); Statement stmt; do { System.out.println("Menu:"); System.out.println("1. Insert \n 2.Update \n 3.Display:"); System.out.println("Enter Choice:"); ch = Integer.parseInt(br.readLine()); switch(ch) { case 1: stmt = con.cre...
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Write a Java program to accept the details of student (rollNo, name, percentage) from the user and insert it into the table (Use PreparedStatement class)

Write a Java program to accept the details of student (rollNo, name, percentage) from the user and insert it into the table (Use PreparedStatement class) Program: import java.sql.*; import java.io.*; class Student { public static void main(String args[]) throws SQLException, ClassNotFoundException, IOException { String name; int rollNo; float percentage; char ch; BufferedReader br; Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); COnnection con = DriverManager.getConnection("jdbc:odbc:studentDSN"); do { PreparedStatement stmt = con.prepareStatement("insert into student values(?,?,?)"); br = new BufferedReader(new InputStreamReader(System.in)); System.out.println("Enter Roll No:"); rollNo = Integer.parseInt(br.readLine()); System.out.println("Enter Name:"); name = br.readLine(); ...
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Write a Java program to accept the details of employee(eno, ename, salary) using AWT and insert into database

Write a Java program to accept the details of employee(eno, ename, salary) using AWT and insert into database. Program: import java.awt.*; import java.awt.event.*; import java.io.*; import java.sql.*; public class Employee extends Frame implements ActionListener { Label labelEno, labelEname, labelSalary; TextField textEno, textEname, textSalary; Button btnAdd; String sqlQuery; Statement s; Connection dbConnection; public Employee() throws ClassNotFoundException, SQLException { Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); dbConnection = DriverManager.getConnection("jdbc.odbc:EmployeeDSN"); setLayout(new FlowLayout()); setSize(300,300); labelEno = new Label("Employee No:"); labelEname = new Label("Employee Name:"); labelSalary = new Label(Employee Salary:); textEno = new TextField(20); textEname = new TextField(20); textSalary = new TextField(20); btnAdd = new Button("Add"); btnAdd.addAction...
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