Code4ReferenceList Recently Used(LRU) implementation using LinkedHashMap

Recently I stumbled on one of the Java interview questions: “Implement List-Recently-Used (LRU) Cache using Java collection class?” If you…

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MySQL error: Can’t connect to MySQL server

You may have stumbled on this MySQL error. If you have already seen this before, then it’s really easy to…

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Apache Server and JMeter debugging

I had been using JMeter to generate load for my production server to test my application. The test-plan has 13+…

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JMeter custom function implementation

JMeter provides functions that can be used in the sampler. While writing complex test-plan you feel that JMeter is lacking…

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Debugging SQL query in MySQL

Recently I started writing SQL query for analyzing and debugging the production code. But I was surprised to see that…

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Android: Copy-paste with Intent and support for HTML

Android provides support for copy and paste feature using ClipBoardManager. The developer.android.com provides a brief description along with an image…

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Android AlarmManager tutorial

While writing an application, need arises to schedule execution of code in future. You may require AlarmManager to schedule your…

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Android dynamic and XML layout

Android activity contains various user interface components e.g Button, Radio button, List, Text field etc. The user interface component can…

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Android Homescreen Widget with AlarmManager

In this tutorial we will learn to create widget with update interval less than 30 mins using AlarmManager. New update:…

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