To make it easier to enter names into your code, netbeans provides a feature known as

Code completion.

Explanation:

The NetBeans is an integrated development environment framework of java language. Code completion is the features of NetBeans which is easier to complete the code This feature is known as smart code features because it completes the code in a very easy manner. The Code completion features are needful when we have to fill the missing code or program in the java language.  

Hence Code completion.  is used to enter the name into the code in the  NetBeans.

answerthetitle bar displays the title of the document which you are currently working;