For example, if I perform some shortcut on import java.util.HashMap;
in a class, I want Eclipse to show the lines where I instantiate HashMaps and call HashMap methods in that class.
You can try the shortcut Ctrl + Shift + G
for references of the class or Ctrl + G
for declarations.
or
Right click your class (in your Java editor) and go to either References or Declarations.
I only use Ctrl + Shift + G for searching for references.
Inside the Class, you can find references to the class turning on the option in the menu bar as marked. Clicking on a class or variable, it will highlight the references/occurrences in your class.