Apache Ant Interview Questions and Answers, Apache Ant Interview Questions and Answers Freshers, Apache Ant Interview Questions and Answers, Apache Ant Interview Questions
Before getting on to the Apache Ant interview questions, the student must know that the Apache Ant is a continuously varying field which needs the students as well as professionals to upgrade their skills with the new features and knowledge, to get fit for the jobs associated with Apache Ant. This post related to Apache Ant Interview Questions and Answers, Apache Ant Interview Questions and Answers Freshers, Apache Ant Interview Questions and Answers, Apache Ant Interview Questions will help you let out find all the solutions that are frequently asked in you upcoming Apache Ant interview.
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Hence, if you are looking for boosting up your profile and securing your future, Apache Ant will help you in reaching the zenith of your career. Apart from this, you would also have a lot of opportunities as a fresher.
These questions alone are omnipotent. Read and re-read the questions and their solutions to get accustomed to what you will be asked in the interview. These Apache Ant interview questions and answers will also help you on your way to mastering the skills and will take you to the giant world where worldwide and local businesses, huge or medium, are picking up the best and quality Apache Ant professionals.
This ultimate list of best Apache Ant interview questions will ride you through the quick knowledge of the subject and topics like Installing Ant, Ant concepts and terminologies, Integrating ANT into your IDE. This Apache Ant interview questions and answers can be your next gateway to your next job as a Apache Ant expert.
These are very Basic Apache Ant Interview Questions and Answers for freshers and experienced both.
Q1: What is Apache Ant?
A1: Apache Ant is a Java library and command-line tool for automating software build processes.It drives the processes or instructions described in build files as targets and extension points dependent upon each other.The main known usage of Ant is the build of Java applications. Ant supplies a number of built-in tasks allowing to compile, assemble, test and run Java applications. Ant can also be used effectively to build non Java applications, for instance C or C++ applications. More generally, Ant can be used to pilot any type of process which can be described in terms of targets and tasks.
Q2: What is minimum version of Java is required to run Apache Ant 1.9.x?
A2: Java 1.5 is required for Apache Ant 1.9.x.
Q3: List some basic functions performed by Ant.
A3: Ant tool is used for:-
- Compiling Java code into bytecode
- Placing this bytecode in a package
- Deployment to production systems
- Document creation and release notes preparation.
Q4: In which language Apache Ant is written?
A4: Ant is written in Java.
Q5: Why Do You Call It Ant?
A5: The ant is acronym of ”Another Neat Tool” according to James Duncan Davidson. Ants are very small and can carry heavy weight. So as Job of Apache ant. Its name is called ANT.
Q6: What Are The Capabilities Of Ant?
A6: ANT tool is extended by using java classes. The configuration files are XML-based. Each task of building directory tree is executed by using the object that implements the Task interface.
ANT provides the cross-platform deployment that can run on any platform.
Q7: How You Can Explain Ant Property?
A7: A project can have a set of properties .A property has name and value .The name is case sensitive and Properties are immutable this mean once set property its will not change. Properties may be used in the value of task attributes.
Q8: How We Can Create A Jar Using Ant?
A8: To make a jar of classes we need set target as jar. In this target we need to make directory in which jar will stored. Then we need jar tag to make the jar .In this tag we have pass two attributes first is name of destination directory and second one is the name of base directory where our all class files are stored .We need a manifest to create a jar file. In manifest tag we have pass two attributes first is name of manifest file name and second is its value.
Q9: How We Can Set Path Path And Classpath Into An Ant Build File?
A9: Ant does not need to set class path.
Q10: Explain How To Make Ant User Interactive?
A10: The org.apache.tools.ant.input.InputHandler interface is used to implement the user input. To perform the user input, the application creates InputRequest object and this object will be passed to InputHandler. The user input will be rejected if it is invalid.
The InputHandler interface has exactly one method, by name handleInput(InputRequest request). This method throws org.apache.tools.ant.BuildException, if the input is invalid.
Q11: Explain How To Use Runtime In Ant?
A11: There is no need to use Runtime in ant. Because ant has Runtime counterpart by name ExecTask. ExecTask is in the package org.apache.tools.ant.taskdefs. The Task is created by using the code in the customized ant Task. The code snippet is as follows:
ExecTask execTask = (ExecTask)project.createTask (“exec”);
Q12: How does ant read properties? How to set my property system?
A12: Ant sets properties by order, when something is set, the later same properties cannot overwrite the previous ones. This is opposite to your Java setters. This give us a good leverage of preset all properties in one place, and overwrite only the needed. Give you an example here. You need password for a task, but don’t want to share it with your team members, or not the developers outside your team.
Store your password in your ${user.home}/prj.properties
pswd=yourrealpassword
In your include directory master prj.properties
pswd=password
In your build-common.xml read properties files in this order
-
- The commandline will prevail, if you use it: ant -Dpswd=newpassword
- ${user.home}/prj.properties (personal)
- yourprojectdir/prj.properties (project team wise)
- your_master_include_directory/prj.properties (universal)
<cvsnttask password=”${pswd} … />
Q13: How to use ant-contrib tasks?
A13: Simple, just copy ant-contrib.jar to your ant*/lib directory
And add this line into your ant script, all ant-contrib tasks are now available to you!
<taskdef
resource=”net/sf/antcontrib/antcontrib.properties” />
Q14: Can I put the contents of a classpath or fileset into a property?
A14: Yes, you can.
This is very similar to the call of Java class toString() method and actually it is calling the toString() method inside ant. For example
<fileset id=”fs1″ dir=”t1″ includes=”**/*.java”/>
<property name=”f1.contents” refid=”fs1″/>
<echo>f1.contents=${f1.contents}</echo>
Q15: How to use ant to run commandline command? How to get perl script running result?
A15: Use exec ant task.
Don’t forget ant is pure Java. That is why ant is so useful, powerful and versatile. If you want ant receive unix command and result, you must think Unix. So does in MS-Windows. Ant just helps you to automate the process.
Q16: How can I write my own ant task?
A16: Easy!
Writing Your Own Task How-To from ant.
In your own $ANT_HOME/docs/manual directory, there also is tutorial-writing-tasks-src.zip
Use them! Use taskdef to define it in your script, define it before using it.
Q17: How to hide password input?
A17: Override ant Input task.
Response every user input with a backspace. Not the best, but it works
Q18: Can I change/override ant properties when I use ant-contrib foreach task?
A18: <foreach> is actually using a different property space, you can pass any property name/value pair to it. Just use <param> nested tag inside foreach
Q19: Explain how to use ant-contrib tasks.
A19:
- Copy the ant-contrib.jar to the directory ant*/lib. Copy ant-contrib.jar to your ant*/lib directory.
- Append the following code snippet to avail all the ant-contrib tasks.
Q20: Explain how to debug my ant script.
A20: The echo can be used like the alert() of the JavaScript.
Use project.log(“msg”) in javascript or custom ant task
Run Ant with -verbose, or even -debug, to get more information on what it is doing, and where.
Q21: Explain how to modify properties in ant.
A21: We can not modify the properties in ant. The properties in ant are immutable in nature.
Q22: What is different between Ant and Make?
A22: The most important difference between Ant and Make is that Ant uses XML to describe the build process and its dependencies, whereas Make uses its Makefile format. By default the ant XML file is named build.xml.
Q23: What is IVY?
A23: Ivy is a popular dependency manager .IVY is basically focused on flexibility and simplicity.
The latest version of Ivy is 2.1.0.
Key features of the 2.1.0 release are
- The Key features of Ivy is enhanced Maven2 compatibility, with several bug fixes and more pom features covered.
- new options for the Ivy Ant tasks and commandline
- configuration intersections and configuration groups
- numerous bug fixes & improvements as documented in Jira and in the release notes
Apache Ant Conclusion Interview FAQs
We know the list of Apache Ant Interview Questions and Answers, Apache Ant Interview Questions and Answers Freshers, Apache Ant Interview Questions and Answers, Apache Ant Interview Questions is overwhelming but the advantages of reading all the questions will maximize your potential and help you crack the interview. The surprising fact is that this Apache Ant interview questions and answers post covers all the basic of the Apache Ant technology and you have to check out the FAQs of different components of Apache Ant too.
However, you will be asked with the questions in the interview related to the above mentioned questions. Preparing and understanding all the concept of Apache Ant technology will help you strengthen the other little information around the topic.
After preparing these interview questions, we recommend you to go for a mock interview before facing the real one. You can take the help of your friend or a Apache Ant expert to find the loop holes in your skills and knowledge. Moreover, this will also allow you in practicing and improving the communication skill which plays a vital role in getting placed and grabbing high salaries.
Remember, in the interview, the company or the business or you can say the examiner often checks your basic knowledge of the subject. If your basics is covered and strengthened, you can have the job of your dream. The industry experts understand that if the foundation of the student is already made up, it is easy for the company to educate the employ towards advance skills. If there are no basics, there is no meaning of having learnt the subject.
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We hope that you enjoyed reading Apache Ant Interview Questions and Answers, Apache Ant Interview Questions and Answers Freshers, Apache Ant Interview Questions and Answers, Apache Ant Interview Questions and all the FAQs associated with the interview. Do not forget to revise all the Apache Ant interview questions and answers before going for the Apache Ant interview. In addition to this, if you’ve any doubt or query associated with Apache Ant, you can contact us anytime. We will be happy to help you out at our earliest convenience. At last, we wish you all the best for your upcoming interview on Apache Ant Technology.
