Java application execution

Before getting deeper into how the JVM works, let's review how to run an application, bearing in mind that the following statements are used as synonyms:

• Run/execute/start the main class
• Run/execute/start the main method
• Run/execute/start/launch an application
• Run/execute/start/launch JVM or a Java process

There are also several ways to do it. In Chapter 1, Getting Started with Java 12, we showed you how to run the main(String[]) method using IntelliJ IDEA. In this chapter, we will just repeat some of what has been said already and add other variations that might be helpful for you.

Using an IDE

Any IDE allows for running the main() method. In IntelliJ IDEA, it can be done in three ways:

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