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What are listeners in java and explain ?
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Answer / raman
A listener is called when the user does something to the user
interface that causes an event. Altho these events usually
come from the user interface.
Named Inner Class Listeners -
Anonymous Inner Class Listeners -
Top-level Listeners -
Action and AbstractAction -
External Listeners -
Subclassing a component and overriding processActionEvent().
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / raman
Twelve types of event are used in Java AWT. These are as
follows :
1. ActionEvent
2. AdjustmentEvent
3. ComponentEvent
4. ContainerEvent
5. FocusEvent
6. InputEvent
7. ItemEvent
8. KeyEvent
9. MouseEvent
10. PaintEvent
11. TextEvent
12. WindowEvent
| Is This Answer Correct ? | 0 Yes | 2 No |
If I will write String s=new String("XYZ"); String s1=new String("XYZ"); if(s.equals(s1)){ sop("True"); } else{ sop("False"); } This program will give me "True". But When I am creating my own class suppose class Employee{ public Employee(String name); } Employee e= new Employee("XYZ"); Employee e1 = neew Employee("XYZ"); if(e.equals(e1)){ sop("True"); } else{ sop("False"); } Then it will give the output as "False". Can I know what is happening internally?
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