JetBrains loves all programming languages, and developers of all types! This May, Java turns 25 years old! So we want to pay it special attention, and celebrate 25 things we love about Java and the JVM. (more…)

The challenge Assume "#" is like a backspace in string. This means that string "a#bc#d" actually is "bd" Your task is to process a string with "#" symbols. Examples Test cases The solution in Java Option 1: Option 2 (using regex): Option 3 (using substrin... (more…)

p8g has been developed for individuals interested in getting into creative programming no matter the experience. (more…)

Pure Java typesetting system. Contribute to DaveJarvis/KeenType development by creating an account on GitHub. (more…)

HashMap is one of the most frequently used collection types in Java, it stores key-value pairs. Ideally it expects to use hash table which expects the data access time complexity to be O(1), however, due to hash conflicts, in reality, it uses linked list ... (more…)