When we wish to invoke a method in our object, we simply type a period at
the end of the variable name, and all available methods are displayed as code
Notice how the JavaDoc for the selected method is automatically displayed.
Code templates are abbreviations for frequently used code snippets. To use a
code template, we simply type it into the editor and hit the Tab key to expand the
abbreviations into the full code snippet it represents.
For example, typing sout and pressing the Tab key will expand into
System.out.println(""); , with the caret placed between the two double quotes.