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14 Unix interview Q&As for Java developers

Q1 How do you remove the Control-M characters from a file?
A1 Using the sed command that replaces Control-M with nothing



Chrome Postman to test and debug RESTful Web Services

Step 1 You need to get the Postman extension for the Google chrome browser.

Step 2 Search and add POSTMAN.

Step 3 Once installed, open it from the Apps link.

chrome-apps

Step



Debugging JAR hell issues in Java

The following 3 questions are frequently asked by Java developers as an industrial strength Java project will have 100+ jar files. How often have you come across a Java application that requires different …



Debugging like a pro with eclipse IDE tutorial for Java developers

Often you get to work on a fully functional Java application that is already in production to fix production issues or to enhance its existing functionality. As a new Java developer …



Debugging SSL issues in Java & tools to debug

Q1. What are some of the issues you encounter with SSL handshake? A1. Some of the issues you try to debug are Presence of a valid certificate in trust store Incorrect …



Handy DOS commands for Java developers

Q. How will you copy files more robustly in DOS? A. Using the Robocopy (stands for Robust File Copy) or Xcopy command line utilities. Check for its options with “robocopy /?”. …



How to perform impact analysis across Java based applications?

Performing impact analysis is a crucial software development task. It is all about calculating the impact of software change.

Q1. What is an impact analysis? Is it a trivial task?…



JMeter beginner tutorial

This tutorial performance test the RESTFul web service we created ealier as part of the “RESTful Web Service Tutorial with Apache CXF, Maven, and Eclipse” with JMeter. JMeter is an opensource …



Notepad++ beginner tutorial

You can download Notepad++ from http://notepad-plus-plus.org/download. It is a very handy productivity boosting tools. Q. Why is Notepad++ is a very handy tool? A.  Notepad++ is a very handy developer tool. …



Notepad++ productivity tips with SQL trigger code example

One of the traits of good developers is that being lazy and this laziness leads to finding productive ways to perform a task. Recently, I had to create a number of …



Notepad++ to construct SQL where clause

Lets take a tutorial like scenario to demonstrate power of Notepad++ as a  developer productivity tool. Q. How will you extract rule_name values from a tabular data shown below and convert …



Power of SQL as a productivity tool

There are times where you need to generate “INSERT” SQL statements from existing data. For example, you may have a production release ready “Delete” SQL statement as shown below to remove …



sed and awk to write shell scripts for Java developers

Q. How would you go about replacing a piece of a text or a phrase from 20,000+ web templates residing on a Unix file system? Even some candidates with 5+ years …



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