IntelliJ IDEA How to know this class belongs to which JAR

For example, how to find out this FileUploadBase class belongs to which JAR or dependency?

Date: 2019-08-11 View: 1520

Intellij IDEA default static void main shortcut

In IDEA, you can type psvm and press Tab to generate the public static void main(String[] args) automatically.

Date: 2019-08-11 View: 1520

Intellij IDEA System.out.println shortcut

In IDEA, you can type sout and press Tab to generate System.out.println automatically.

Date: 2019-08-11 View: 1520

Intellij IDEA How to show method signature?

In IDEA, clicks on the method name, press CTRL + Q to show the method signature on a pop up.

Date: 2019-08-11 View: 1520