Java

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java program for Client-Server Program using TCP/IP

Program : Client-Server Program using TCP/IP By : Kapil Lohia Program 1:   import java.net.*; import java.io.*;   class tcpip_server { public static void main(String args[]) throws IOException { ServerSocket n1=null; try { n1=new ServerSocket(98); } catch(IOException e) { System.err.println("Port 98 could not be found"); System.exit(1); } Socket c=null; try { c=n1.accept(); System.out.println("Connection from "+c); […]

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DatagramSocket and DatagramPacket (Client-Server Program using UDP/IP)

Program : DatagramSocket and DatagramPacket (Client-Server Program using UDP/IP) By : Kapil Lohia Program 1 :   import java.net.*;   class udpip_server { public static DatagramSocket ds; public static byte buffer[]=new byte[1024];   public static void Myserver() throws Exception { int pos=0; while(true) { int c=System.in.read(); switch(c) { case -1: System.out.println("Server quits"); return; case ‘\r’:break; […]

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Java program for Uniform Resource Locator (URL)

Program : Uniform Resource Locator (URL) By : Kapil Lohia import java.net.*; import java.io.*;   class url { public static void main(String args[]) throws Exception { URL n1 = new URL("http://java.sun.com:80/docs/index#down"); System.out.println("Protocol:"+n1.getProtocol()); System.out.println("Host :"+n1.getHost()); System.out.println("File Name :"+n1.getFile()); System.out.println("Port :"+n1.getPort()); System.out.println("Reference :"+n1.getRef()); } }

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Java program to implement a Color Section from a given set of Color.

To implement a Color Section from a given set of Color. import java.awt*; import java.awt.event.*; import java.applet.*;   public class fillcolor extends Applet implement Item Listener { checkbox red,yellow,black,blue.orange; CheckboxGroup cbg; String msg; String s1="red"; String s2="yellow"; String s3="black"; String s4="orange"; public void init() { cbg = new CheckboxGroup(); red = new Chechbox("red",cbg,true); yellow= new […]

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Java Program for calculator

JPanel p = new JPanel();
p.setLayout(new GridLayout(4, 4));
String buttons = “789/456*123-0.=+”;
for (int i = 0; i < buttons.length(); i++) addButton(p, buttons.substring(i, i + 1)); add(p, "Center");

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Java applet program for interest rate calculation

Write a Java program that computes the payment of a loan based on the amount of the loan, the interest rate and the number of months. It takes one parameter from the browser: Monthly rate;if true, the interest rate is per month; Otherwise the interest rate is annual.