Nested views are views that are contained within other views. This means that a view can have multiple sub-views, which are views that are placed inside the main view.
Here's an example of how to create nested views in CodeHS: 2.3.9 nested views codehs
// Create the main view
var mainView = new View(0, 0, 400, 400);
mainView.setBackground("white");
// Create a nested view
var nestedView = new View(50, 50, 300, 300);
nestedView.setBackground("gray");
// Add the nested view to the main view
mainView.add(nestedView);
// Create another nested view
var innerView = new View(50, 50, 200, 200);
innerView.setBackground("blue");
// Add the inner view to the nested view
nestedView.add(innerView);
// Add the main view to the screen
add(mainView);
In modern graphical user interface (GUI) development, the ability to organize and manage on‑screen elements efficiently is paramount. One of the most fundamental organizational structures is the nested view—a layout technique where one view (or container) is placed inside another. The CodeHS lesson 2.3.9 Nested Views introduces this concept in the context of building structured, responsive, and maintainable user interfaces. By mastering nested views, students learn how to create complex layouts from simple building blocks, a skill directly transferable to web development (HTML/CSS), mobile app design (SwiftUI, Jetpack Compose), and desktop applications. Nested views are views that are contained within other views