Java Assertion or assert keyword in java is little unknown and not many programmer is familiar with this and it's been rarely used specially if you have not writing unit test using JUnit which extensively uses Java assertion to compare test result. Junit itself is the biggest manifestation of what assertion in Java can do and believe me by using assertion along with Exception you can write robust code. Assertion not only improve stability of code but also help you to become better programmer by forcing you to think about different scenario while writing production quality code and improving your think through ability.
This article is in continuation of my earlier post like How SubString works in Java or Why main is public static in java, if you haven’t read you may find interesting.
