Input Password Function in Console Using Java
Letting users picking password in console is a commonly wanted feature. We let the users enter a password string, and check if it is a valid password e.g. minimal …
Category: java
The Java Method to Read Content of File into a String
The following FileUtils.readFile takes a file path, and a second paramter charset – then it will read the content of the file and return as a string. This is …
How to Check If Two Collections Intersect in Java?
Given Two Collection Types in Java, we want to find out if two collections are overlapping (intersection) i.e. Any of the elements in one collection are found in another. …
Convert UTF-8 Char Array to Raw Byte Array in Java
Given a UTF-8 Char Array, we can use the following Java Function to Convert to Raw Byte Array. Each UTF-8 Character has 3 types: 3 bytes, 2 bytes or …
A Pseudo Random Generator in Java to Shuffle an Array/List
Sometimes, we need to shuffle an array or list in Java – but we want to get the same “random” output for the same input. The following is a …