Madan Chaudhary madan712

Madan holds a bachelor degree in Computer engineering and having 15 years of exp as a full stack java developer

madan712 / CheckJar.java

Last active December 10, 2015 22:28

Java - How to find which jar file is referring for a specific class

	import java.util.Properties;

	public class CheckJar {

	public static void main(String[] args) {

	Properties prop = System.getProperties();

	System.out.println("Classpath : " + prop.getProperty("java.class.path"));
	System.out.println("JVM name : "+ prop.getProperty("java.vm.specification.name"));

madan712 / PingIP.java

Last active December 19, 2023 06:57

Java program to ping an IP address

	import java.io.BufferedReader;
	import java.io.InputStreamReader;

	public class PingIP {

	public static void runSystemCommand(String command) {

	try {
	Process p = Runtime.getRuntime().exec(command);
	BufferedReader inputStream = new BufferedReader(

madan712 / PopupDiv.html

Last active January 18, 2024 18:23

Open Popup div with disabled background using Javascript

	<HTML>
	<HEAD>
	<TITLE>Popup div with disabled background</TITLE>
	<style>
	.ontop {
	z-index: 999;
	width: 100%;
	height: 100%;
	top: 0;
	left: 0;

madan712 / test.jsp

Created February 17, 2013 18:20

JSP example - Google Recaptcha validation using jquery (AJAX)

	<%
	String remoteip = request.getRemoteAddr();
	%>
	<!doctype html>
	<html>
	<head>
	<title> Recaptcha validation using jquery ajax </title>
	<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
	<script type="text/javascript" src="recaptcha_ajax.js"></script>
	<script type="text/javascript">

madan712 / validateRecaptcha.jsp

Created February 17, 2013 18:21

JSP example - Google Recaptcha validation using jquery (AJAX)

	<%@ page import="net.tanesha.recaptcha.ReCaptchaImpl,net.tanesha.recaptcha.ReCaptchaResponse" %><%

	ReCaptchaImpl reCaptcha = new ReCaptchaImpl();
	reCaptcha.setPrivateKey("your_private_key");

	String remoteip = request.getParameter("remoteip");
	String challenge = request.getParameter("challenge");
	String res = request.getParameter("response");
	ReCaptchaResponse reCaptchaResponse = reCaptcha.checkAnswer(remoteip, challenge, res);

madan712 / test.php

Last active February 20, 2017 17:45

PHP example - Google Recaptcha validation using jquery (AJAX)

	<?php
	$remoteip = $_SERVER['REMOTE_ADDR'];
	?>
	<!doctype html>
	<html>
	<head>
	<title> Recaptcha validation using jquery ajax </title>
	<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
	<script type="text/javascript" src="recaptcha_ajax.js"></script>
	<script type="text/javascript">

madan712 / validateRecaptcha.php

Created February 17, 2013 18:23

PHP example - Google Recaptcha validation using jquery (AJAX)

	<?php
	require_once('recaptcha-php-1.11/recaptchalib.php');
	$privatekey = "your_private_key";
	$resp = recaptcha_check_answer ($privatekey,$_POST["remoteip"],$_POST["challenge"],$_POST["response"]);
	if (!$resp->is_valid) {
	echo "false";
	}
	else {
	echo "true";
	}

madan712 / ObjectTypeDetector.java

Created March 21, 2013 12:06

Java : Function to return type of Object

	import java.util.ArrayList;
	import java.util.Date;

	public class ObjectTypeDetector {

	public static String getObjectType(Object obj) {
	String objectType = "null";
	if (obj != null) {
	objectType = obj.getClass().getName();
	objectType = objectType.substring(objectType.lastIndexOf(".") + 1);

madan712 / ReadExcelFile.java

Last active October 30, 2023 21:13

Java - Read excel file with blank cells

	import java.io.FileInputStream;
	import java.io.InputStream;
	import java.util.Iterator;

	import org.apache.poi.hssf.usermodel.HSSFCell;
	import org.apache.poi.hssf.usermodel.HSSFRow;
	import org.apache.poi.hssf.usermodel.HSSFSheet;
	import org.apache.poi.hssf.usermodel.HSSFWorkbook;
	import org.apache.poi.ss.usermodel.Row;

madan712 / URLReader.java

Created July 3, 2013 10:55

Java Program to readl URL

	import java.io.BufferedReader;
	import java.io.InputStreamReader;
	import java.net.MalformedURLException;
	import java.net.URL;
	import java.net.URLConnection;

	public class URLReader {

	public void readURL() {