object-oriented programming (OOP) - demonstrate an ability to solve a problem by designing appropriate classes - demonstrate an ability to write code that demonstrates the use of classes, inheritan...

Apr 26, 2022 · The composition is a design technique in java to implement a has-a relationship. Java Inheritance is used for code reuse purposes and the same we can do by using composition. The composition is achieved by using an instance variable that refers to other objects.

Jan 11, 2014 · Containment & inheritance are ways of code re-usability. Containment is a 'has-a' relationship while Inheritance is a 'is-a' relationship. Containment means use of object of one class in another while inheritance means reusing the features of a class in its derived class.

Can the elements of the String [] be in different orders and still make the whole array be considered equal to another array containing the same elements in another order? If yes, you'd indeed be better off implementing a container class and overriding equals and hashcode.

Nov 13, 2013 · This hierarchy that contains all the components is called as Containment Hierarchy. Every containment hierarchy has its root which is a top-level container. So, how many containment hierarchies can be in an application?

We use this program to introduce some commonly used Swing components and to show how the components in a GUI fit together into a containment hierarchy. SwingApplication creates four commonly used Swing components:

JPanel contentPane = new JPanel(); contentPane.add(someComponent); contentPane.add(anotherComponet); Illustrates the Content Pane, and Menu Bar positioning. Used for ‘weird’ interface behavior, rarely used. Very few people know it all! – Swing is. HUGE. The Java 2 API Documentation. • Lots of ‘em... • Layout Management.

Mar 27, 2025 · In Composition, we use an instance variable that refers to another object. The composition relationship of two objects is possible when one object contains another object, and that object is fully dependent on it. The contained object should not exist without the existence of its parent object.

The "containment" portion of the Extensible Runtime Containment and Services Protocol is defined by the BeanContext interface. In its most basic form, a BeanContext is used to logically group a set of related java beans, bean contexts, or arbitrary objects.

All containers inherit from the java.awt.Container base class, which itself inherits from java.awt.Component. Main application windows and dialog boxes are commonly used containers. Each provides a window within which GUI components can be arranged to create a user interface.