Java.util package provides a BitSet class which implements a vector of bits that grows as needed. Each component of the bit set has a boolean value. The bits of a BitSet are indexed by nonnegative integers. By default, all bits in the set initially have t... (more…)

Last week, I needed to implement file upload using Spring Boot. When I finished, I realized that a security hole could happen in my algorithm. So I decided to write this article and share this problem with you. (more…)

Subscribe to Java SE and get the most comprehensive Java support available, with 24/7 global access to the experts. (more…)

The Java has a number of methods and functions that are available for use with strings. These methods and functions are listed below in alphabetical order. For more details about any one of these, please visit its page. (more…)

Oracle's history highlights a possible downside to its stance on API copyrights. (more…)