Create an Apex Class

Create the Class

1. Open the Developer Console from the quick access menu.
2. Click File > New > Apex Class and name it HelloWorld.
3. Add a public static method greet that returns the string Hello, Trailblazer.
4. Save.

public class HelloWorld {
  public static String greet() {
    return 'Hello, Trailblazer';
  }
}