Event Handling In Java — Part 1 MCQs with Explanations

An action or occurrence to which a program can respond is the correct answer to “What is an event in Java”. This question is standard in competitive examination syllabi for Event Handling In Java.

An object that generates events is the correct answer to “In Java event handling, what is an event source”. This question is standard in competitive examination syllabi for Event Handling In Java.

`java.awt.event` is the correct answer to “Which package in Java contains classes for event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

An object that listens for events and responds to them is the correct answer to “What is an event listener in Java”. This question is standard in competitive examination syllabi for Event Handling In Java.

`addActionListener()` is the correct answer to “In Java, which method is used to register an event listener with an event source”. This question is standard in competitive examination syllabi for Event Handling In Java.

It represents an action event generated by a component like a button is the correct answer to “What is the purpose of the `ActionEvent` class in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

It returns the object that generated the event is the correct answer to “In Java event handling, what is the purpose of the `getSource()` method of the `ActionEvent` class”. This question is standard in competitive examination syllabi for Event Handling In Java.

`ActionListener` is the correct answer to “Which event listener interface is used for handling action events in Java”. This question is standard in competitive examination syllabi for Event Handling In Java.

By implementing an event listener interface and overriding its method is the correct answer to “In Java, how do you specify that an event should trigger a particular method for event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

It represents an item event generated by components like checkboxes and radio buttons is the correct answer to “What is the purpose of the `ItemEvent` class in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

`itemStateChanged()` is the correct answer to “In Java event handling, which method is used to handle item events for a checkbox”. This question is standard in competitive examination syllabi for Event Handling In Java.

It provides methods for handling mouse-related events is the correct answer to “What is the purpose of the `MouseListener` interface in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

It represents mouse-related events and provides information about them is the correct answer to “In Java event handling, what is the purpose of the `MouseEvent` class”. This question is standard in competitive examination syllabi for Event Handling In Java.

`mouseClicked()` is the correct answer to “Which method is used to handle mouse clicks in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

It represents keyboard-related events is the correct answer to “In Java event handling, what is the purpose of the `KeyEvent` class”. This question is standard in competitive examination syllabi for Event Handling In Java.

`WindowListener` is the correct answer to “In Java event handling, which interface is used for handling window events like closing a window”. This question is standard in competitive examination syllabi for Event Handling In Java.

It represents window-related events is the correct answer to “What is the purpose of the `WindowEvent` class in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

`windowClosing()` is the correct answer to “In Java event handling, which method is used to handle window closing events”. This question is standard in competitive examination syllabi for Event Handling In Java.

It provides a string that describes the action command associated with an event is the correct answer to “What is the purpose of the `ActionCommand` in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

ActionEvent is the correct answer to “In Java event handling, which event is generated when a button is clicked”. This question is standard in competitive examination syllabi for Event Handling In Java.

`mouseDragged()` is the correct answer to “Which method is used to handle mouse drag events in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

It represents focus-related events is the correct answer to “What is the purpose of the `FocusEvent` class in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

`focusGained()` is the correct answer to “In Java event handling, which method is used to handle focus gained events”. This question is standard in competitive examination syllabi for Event Handling In Java.

It provides methods for dispatching keyboard-related events is the correct answer to “What is the purpose of the `KeyEventDispatcher` interface in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

It represents mouse wheel-related events is the correct answer to “In Java event handling, what is the purpose of the `MouseWheelEvent` class”. This question is standard in competitive examination syllabi for Event Handling In Java.

`mouseWheelMoved()` is the correct answer to “Which method is used to handle mouse wheel events in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

It provides default implementations of the `WindowListener` interface methods is the correct answer to “In Java event handling, what is the purpose of the `WindowAdapter` class”. This question is standard in competitive examination syllabi for Event Handling In Java.

It represents input-related events is the correct answer to “What is the purpose of the `InputEvent` class in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

`inputEvent()` is the correct answer to “Which method is used to handle input events in Java event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

It provides default implementations of the `MouseListener` interface methods is the correct answer to “In Java event handling, what is the purpose of the `MouseListenerAdapter` class”. This question is standard in competitive examination syllabi for Event Handling In Java.

ComponentEvent is the correct answer to “Which of these is superclass of ContainerEvent class”. This question is standard in competitive examination syllabi for Event Handling In Java.

A listener is a object that is notified when an event occurs is the correct answer to “What is a listener in context to event handling”. This question is standard in competitive examination syllabi for Event Handling In Java.

getValue() is the correct answer to “Which of these methods can be used to know the degree of adjustment made by the user”. This question is standard in competitive examination syllabi for Event Handling In Java.

java.awt.event is the correct answer to “Which of these packages contains all the event handling interfaces”. This question is standard in competitive examination syllabi for Event Handling In Java.

ItemListener is the correct answer to “Which of these interfaces define a method itemStateChanged()”. This question is standard in competitive examination syllabi for Event Handling In Java.

ComponentEvent is the correct answer to “Which of these is superclass of WindowEvent class”. This question is standard in competitive examination syllabi for Event Handling In Java.

TEXT_VALUE_CHANGED is the correct answer to “Which of these are integer constants of TextEvent class”. This question is standard in competitive examination syllabi for Event Handling In Java.

An event is an object that describes a state change in a source is the correct answer to “What is an event in delegation event model used by Java programming language”. This question is standard in competitive examination syllabi for Event Handling In Java.

All of the mentioned is the correct answer to “Which of these are integer constants of ComponentEvent class”. This question is standard in competitive examination syllabi for Event Handling In Java.

All of the mentioned is the correct answer to “Which of these are constants defined in WindowEvent class”. This question is standard in competitive examination syllabi for Event Handling In Java.