In Java, we don’t need to write “THEN.” Instead, we use an open curly bracket to say that everything that follows is part of that “code block” and should run under the conditions we specify.

The Java Runtime Environment provides a “container” for those elements and your code to run in. The JDK is the “compiler” that interprets the code itself and executes it.

Give variables and methods logical names Another best practice on how to write clean code in Java is to assign logical, human-readable names to methods, variables, functions and other objects within ...

You don’t need to compile code. All you need to do is open an online editor and code away! Which is exactly what we’re going to do here. How to write your first Java program The first non-trivial Java ...

First things first, you will have to write the code that you want to run and save that as a Java executable file. For this purpose, you can use either MS Word or Notepad.

How the Code Works The encryption code is relatively simple (click to enlarge): Decryption is very similar; we simply switch the keys and values in the hashmap so that everything is in reverse.