Escape Characters in Java
n New line t Tab b Backspace r Carriage return f Formfeed \ Backslash ' Single quotation mark " Double quotation mark d Octal xd Hexadecimal ud Unicode character
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- J2se | Java | programs | System program's
Find the system homepath
this java program gives the system home path as output. /** * * @author katta vijay */ public class UserHomeExample { public static void main(String[] args) { System.out.println(“User Home Path: “+ System.getProperty(“user.home”)); } }
Read RSS feeds by Using Java
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ /** * * @author vijay * */ import java.net.URL; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.CharacterData; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; public class RSSReader { private static RSSReader instance = null; private RSSReader() {…
Difference between java jar and war
Both JAR and WAR are created(Zipped) with Java JAR tool , both have different purposes. JAR – Java Archive this JAR file may be a standalone java application or a zipped source . this file contains classes , libraries , property files Command to create a JAR file : here i want to create JAR…
Retrieving elements from collections
Following four ways are used to retrieve elements from collection object : Using for-each loop. Using Iterator Interface. Using ListIterator interface. Using Enumeration Interface. For-each loop : for-each loop is like for loop which repeatedly executes a group of statements,for each element of collection the format is for(variable:collection object) // for( String values: os) {…
- Basics | File reading | J2se | Java
Reading the data from the property file using Java
we are using property file to store some organized data, like database url and connection username etc., reading from this property file is easy and useful myproperties.properties // my properties file name it`s contain name=katta vijay age=24 email=mail@javamix.net Main.java // to read data from property file package javamixposts; import java.io.*; import java.util.*; /** * *…
Ant tool for Java
what is ant tool ? 1) Ant is a java based build tool to automate build process. more clearly says … Ant is an open-source Java-based build tool from the Apache Software Foundation. It’s rapidly become the build tool for J2EE projects, so for developers, it’s certainly worth becoming familiar with the basics of Ant,…