Beginning Android Development - Must Not Undeclare Prefix

Usually when we start with some development activities, especially for new developers, there are many common errors which we face. They are usually not big issues but they become roadblock for new developers and hence de-motivates them to start development.  However, if we see the brighter side, they help us in learning system better and troubleshooting them helps us in understanding tool quickly. One of the most common error users face...

Read More

How to find Even and Odd Number using Java

Although identifying a number as even or odd it's one of the easiest thing to do. However, just for the sake of knowledge and it's implementation with Java is our prime goal here and hence this post. The logic is simple. Any number which when divided by two leaves no remainder is considered as even and the number which leaves a remainder is odd. This is how we implement it using Java. This Program is self explanatory and implemented in most...

Read More

Learn Basic Linux Quiz : Part 1

Linux Basic learner quiz covers questions which focuses on improving basic knowledge in open source areas. These are useful for both new and experienced Linux learners. This blog is first in the series and more questions will be shared. you can subscribe to the blog if you want questions directly on mail. Each Question has only one correct answer and explanations are provided along with that. If you see any issues in the questions, please drop a mail to planetopensrc@gmail.com or leave a comment below. Enjoy the Quiz and do leave your feedback. Basic...

Read More