Tag Archive For "JAVA"
How to run a task periodically in Java without any Java IDE
In this video I have explained solution for your following queries, 1. How can you run a java program without any JAVA Editor. 2. Schedule any task with your java program. 3. What is the use of Runnable Jar File. 4. How can you create Runnable Jar File. The below code with create notepad file …
Convert Java Object into JSON and JSON into Java Object | Jackson API
In this video I have shown how to parse JSON Object to a JAVA Object using JACKSON API. Project Structure, In this project we use 2 jars, 1. com.fasterxml.jackson.core.jar 2. com.fasterxml.jackson.databind.jar Add these jars to build path of Project For testing we have registered with website http://api.ipinfodb.com. After registering we will get the API Key.This …
Java-Send JSON Request and Read JSON Response
In this video I have shown how to Send a JSON Post request using JAVA and Parse the Response using JAVA. For testing we are using the Open web service from this website https://gurujsonrpc.appspot.com. In this project we are using 2 jars, 1. java-json.jar 2. org.apache.commons.io.jar Post_JSON.java package com.chillyfacts.com; import java.io.BufferedInputStream; import java.io.InputStream; import java.io.OutputStream; …
Generate Barcodes Dynamically Using JAVA
In this video I have shown how to create Barcodes in Image and PDF dynamically using JAVA. Project Structure In this project 3 jars are used, 1. barcode4j.jar 2. itextpdf-5.1.0.jar 3. Mysql connector jar Barcode_Image.java package BARCODE; import java.awt.image.BufferedImage; import java.io.ByteArrayOutputStream; import java.io.FileOutputStream; import org.krysalis.barcode4j.impl.code128.Code128Bean; import org.krysalis.barcode4j.output.bitmap.BitmapCanvasProvider; public class Barcode_Image { public static void main(String[] …
Java JSP MySql CRUD Project
In this video tutorial series I have shown how to create Create Read Update Delete (CRUD) in Java Server Pages(JSP). Project Structure in Eclipse DB_Connection.java package common; import java.sql.Connection; import java.sql.DriverManager; public class DB_Connection { public static void main(String[] args) { DB_Connection obj_DB_Connection=new DB_Connection(); System.out.println(obj_DB_Connection.get_connection()); } public Connection get_connection(){ Connection connection=null; try { Class.forName(“com.mysql.jdbc.Driver”); connection …
How to create or read TXT / NotePad File using JAVA
In this video I have shown how to create and read text or Notepad file using java. Create java Text file, Update the path of output file as per your need. Write_TXT_File.java package chillyfacts.com; import java.io.PrintWriter; public class Write_TXT_File { public static void main(String[] args) { PrintWriter writer; try { writer = new PrintWriter(“C:\\Users\\MIRITPC\\Desktop\\jas\\test1.txt”, “UTF-8”); …
ZIP or UnZip files or folder using java
In this video I have demonstrated, 1. How to Zip/Compress a file. 2. How to Zip/Compress a Folder. 3. How to Unzip/Decompress file or folder. You can Zip a file using below code. Update the path of file and destination as per your need. Zip_File_Test.java package ZIP; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.util.zip.ZipEntry; …
‘Starting Tomcat Server at localhost’ has encountered a problem
In this video I have shown how to solve the error. ‘Starting Tomcat v6.0 Server at localhost’ has encountered a problem. Several ports (8080,8009) required by Tomcat v6.0 Server at localhost are already in use. The server may already be running in another process, or a system process may be using the port. To start …
JAVA-Download a file from URL
How to download a file from URL using Java. The jar file org.apache.commons.io.jar should be added to class path as shown in the video Update the Directory Name, File Name and URL as per your need. 1. Download_URL.java package URL_Download; import java.io.BufferedInputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.net.MalformedURLException; import java.net.URL; import org.apache.commons.io.FileUtils; public …
JAVA-Send URL HTTP Request and Read XML Response
In the below code I have shown how to read XML response after sending HTTP URL request using JAVA. For testing we have used Google Maps TimeZone API which returns XML response with the time zone of requested Coordinates. Get the API key and documentation from the below link. https://developers.google.com/maps/documentation/timezone/start Test_HTTP_XML.java package XML_TEST; import java.io.BufferedReader; …