We installed Java and Maven to compile and package Java source code, and we installed Tomcat to deploy and run our application. However, prior to all this, we have to write the Spring MVC code so that we can compile, package, and run the code.

We can use any simple text editor on our computer to write our code, but that won't help us much with features such as finding syntax errors as we type, autosuggesting important key words, syntax highlighting, easy navigation, and so on.

Integrated Development Environment (IDE) can help us with these features to develop the code faster and error free. We are going to use Spring Tool Suite (STS) as our IDE.