Explicit class declaration can be converted into implicitly declared class

Reports ordinary classes, which can be converted into implicitly declared classes

Example:

  public class Sample {
      public static void main(String[] args) {
          System.out.println("Hello, world!");
      }
  }

After the quick-fix is applied:

  public static void main(String[] args) {
      System.out.println("Hello, world!");
  }

This inspection depends on the Java feature 'Implicitly declared classes' which is available since Java 21-preview.

New in 2024.1

Inspection Details
By default bundled with:	IntelliJ IDEA 2024.1, Qodana for JVM 2024.1,
Can be installed with plugin:	Java, 241.16690

Last modified: 29 April 2024