How to use Content Assist in Eclipse IDE


Integrated Environment tools (IDEs) like Eclipse really make development fast and easy with the help of assistant tools, one of them is Content assist or Code assist.

What is Content Assist Does ?

Its a functionality that provides a list of suggested completions for a particular string/code that is being entered. For Example. If you have typed System. and press Ctrl + Space you will get a drop-down assistant menu displaying all possibilities that you can have,

Eclipse Content Assist Gif Demo.gif
Eclipse Content Assist Gif Demo.gif

⚡️ Note: If you have added docs for the programming language you are working with then you probably will also see detailed descriptions of the suggested classes, methods, variables, keywords, etc.

While you are typing you can press Ctrl+Space to get all possibilities for the partially entered string. You would see contents that are related to the Class, Interfaces, Static methods, getter setter methods, methods, variables or datatypes etc along with the return types and input parameters types if applicable.

Code Snippets/Templates

We can also get code templates/snippets for a particular code. For example, if we type instanceof and press Ctrl + Space followed by pressing Enter the keyword will be replaced by the code snippet.

Eclipse Content Assist Gif Demo.gif
Eclipse Content Assist Gif Demo.gif

Let's see one more example the most commonly used for loop,

For loop Code Snippet Gif Demo.gif
For loop Code Snippet Gif Demo.gif

✔️ This really helps us as developers to write code quickly and in an efficient way. This works for all major programming languages like C, C++, Java, PHP, HTML, CSS, Ruby e.t.c. provided you have the appropriate language plugin and you are working in that programming language perspective.