> What does keyword strictfp do! How can it be used effectively.
If you can't understand the documentation supplied with the JDK, then
you probably should ignore this feature of Java. With some JVM using
strictfp will result in under or overflows that would not otherwise have
occurred. On the other hand methods defined with strictfp should produce
exactly the same results on any JVM (whereas without it the methods may
avoid under/overflows and consequently produce a different result).