Java’s String Repeat Implementation
In Python, we can use * to repeat a string. For example: "abc" * 3 # "abcabcabc" "h" * 2 # "hh" We can use the following Java function …
Category: java
Simple Blockchain Example in Java
Blockchain is a hot topic – and we’ll use simple Java code to illustrate the idea. First, we need to define a Block class that is basically a Node …
How to Define N-nary Tree in Java?
In order to define a N-ary tree, we need to be able to store the Node value and its children – which is a list of the Node. And …
Java’s Algorithm of Checking if Error is of Type (Error Inheritance Tree)
Java’s errors are usually handled via Exceptions – where you declare exceptions to throw. Then you throw as much as you can and only catch them when you know …
Getting a List of Old Files in a Directory in Java by Comparing the Files Creation Time
We can browse a list of files using Java‘s listFiles method in File Object, and then we can iterate them one by one and get the file creation Time …