Advanced Java AWT MCQs

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Questions and Answers

Which class can be used to implement the concept of a menu bar in Java AWT?

MenuBar (correct)
Event
Menu
MenuItem

Which constructor does the TextEvent class define?

TextEvent(Object source, int event_type) (correct)
textevent (Object source, int event_type)
textevent (Object source, string event_type)
textevent (object Source, float event_type)

In Java, an event is an instance of which type?

Object (correct)
String
Int
Class

Which package contains the classes and interfaces defined in AWT?

<p>java.awt.* (B)</p> Signup and view all the answers

What is the general form to set a specific type of layout manager in AWT?

<p>void setLayout(LayoutManager lm) (B)</p> Signup and view all the answers

Flashcards

What AWT class is used for menu bars?

The MenuBar class provides the foundation for creating menu bars within Java's Abstract Window Toolkit (AWT).

What is the constructor of the TextEvent class?

The TextEvent class uses a constructor with the following signature: TextEvent(Object source, int event_type). This constructor instantiates a TextEvent object, capturing the source component that generated the event and the type of text event.

What kind of object is a Java event?

In Java, an event represents a specific occurrence or action that happens within an application. It is an instance of the Object class.

Where are AWT classes and interfaces located?

The java.awt.* package in Java contains all the necessary classes and interfaces for the Abstract Window Toolkit (AWT).

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How do you set a layout manager in AWT?

To set a specific layout manager in AWT, you use the setLayout(LayoutManager lm) method. Replace lm with the desired layout manager object (like FlowLayout, BorderLayout, etc.).

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Study Notes

AWT Concepts

The MenuBar class is used to implement the concept of a menu bar in Java AWT.
The TextEvent class defines a single constructor: TextEvent(Object source, int id, String text).
In Java, an event is an instance of the java.util.EventObject class.
The classes and interfaces defined in AWT are contained in the java.awt package.
The general form to set a specific type of layout manager in AWT is: _container_.setLayout(new _LayoutManager_());, where _container_ is the component and _LayoutManager_ is the desired layout manager (e.g., BorderLayout, FlowLayout, etc.).

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Description

Test your knowledge of Abstract Windowing Toolkit (AWT) in Java programming with this set of multiple-choice questions. Covering topics such as AWT controls, menu bar implementation, and Text Event class constructors.