Running an expression evaluates an expression but does not display a result.
If you select the expression to run and click the Run button in the toolbar, no result is displayed, the code is simply run.
For example, if you type and highlight System.out.println("Hello World", and click the Run button, Hello World appears in the Console view, but no result is displayed in the scrapbook editor or the Expressions view.
Displaying the
result of evaluating an expression
Inspecting the
result of evaluating an expression
Viewing runtime
exceptions
