Create,Delete and Compile by ANT build file.(Ant Part-3)

In our last post we have seen 

• What is Ant("Another Neat Tool") ?
• How to configure it in your machine

Now we will see some core task which can be performed by using ant such as create a folder or delete folder and to compile the java source.If till now you have not got 1% idea about ANT don't worry it is not needed also just check the below XML build file.

<?xml version="1.0"?>
<project name="MyfirstAnt" default="main" basedir=".">
  <!-- Sets variables which can later be used. -->
  <!-- The value of a property is accessed via ${} -->
  <property name="create.dir" location="D:/MyAnt/NewFolder" />
  <property name="delete.dir" location="D:/MyAnt/OldFolder" />                  
  <!-- Deletes oldFolder from the path delete.dir-->
  <target name="cleanFolder">
    <delete dir="${delete.dir}" />
  </target>

  <!-- Creates a newfolder on the path create.dir-->
  <target name="makefolder">
    <mkdir dir="${create.dir}" />
  </target>

  <!-- Compiles the java code (including the usage of library for JUnit -->
  <target name="compile" depends="cleanFolder, makefolder">                 <javac srcdir="${src.dir}" destdir="${build.dir}">
    </javac>

  </target>
  <target name="main" depends="compile">
    <description>Main target</description>
  </target>

</project> 

Here we have written three tasks first is to delete a particular folder from file system  the path which you will give in dir attribute it will clean the particular folder means it can be used to clean the class files before building .

Second task is to create a folder so you can create any folder in file system it can be temp .

and last task is to compile the the java source files here we have to give the source path of java files and destination folder where you have to keep the class files you can also set class-path for proper compilation which we will discuss in our coming posts.

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Setting Apache ANT on Computer (Ant part-2)

 Setting up your machine with Ant

Follow the steps to setup the Ant in your computer.

1. Download the following  files(apache-ant-1.7.0-bin.zip) to your hard drive.

2. Unzip the file to anywhere in your hard drive in any folder.

3. Right click your My Computer icon in the Desktop and choose the properties.

4. In the properties now select the Advanced tab and open Environment Variables button.

5. Click on the New button in the System Variable options and enter the following
Variable name - ANT_HOME
Variable value – The ant path location in your system (for example C:\ant\myant)

6. Click the OK button ans save the setting

7. Set the PATH as below in your system (If you have a PATH variable exists in your system then
append the ANT_HOME to it)
set PATH=%PATH%;%ANT_HOME%\bin