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[newbie] The type MouseComponent must implement the inherited abstract method MouseMotionListener...

Jon Camilleri
Ranch Hand

Joined: Apr 25, 2008
Posts: 660

This is wot I see...



Output:
Exception in thread "AWT-EventQueue-0" java.lang.Error: Unresolved compilation problems:
The type MouseComponent must implement the inherited abstract method MouseMotionListener.mouseMoved(MouseEvent)
The type MouseComponent must implement the inherited abstract method MouseMotionListener.mouseDragged(MouseEvent)
Rectangel2D cannot be resolved to a type
Rectangel2D cannot be resolved to a type
Cannot instantiate the type MouseMotionListener
This method must return a result of type Rectangle2D
The method add(Component) in the type Container is not applicable for the arguments (Point)

at MouseComponent.<init>(MouseComponent.java:14)
at MouseFrame.<init>(MouseFrame.java:10)
at MouseTest$1.run(MouseTest.java:14)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)


Jon
Craig Wood
Ranch Hand

Joined: Jan 14, 2004
Posts: 1535
Try changing this

to this
Deepak Bala
Bartender

Joined: Feb 24, 2006
Posts: 6661
    
    5

You code does not compile because of the following reasons


The type MouseComponent must implement the inherited abstract method MouseMotionListener.mouseMoved(MouseEvent)
The type MouseComponent must implement the inherited abstract method MouseMotionListener.mouseDragged(MouseEvent)
Rectangel2D cannot be resolved to a type
Rectangel2D cannot be resolved to a type
Cannot instantiate the type MouseMotionListener
This method must return a result of type Rectangle2D
The method add(Component) in the type Container is not applicable for the arguments (Point)


Use your IDE's quick hint or resolution techniques to fix the problem. Ctrl + 1 in eclipse. Click on the bulb on the sidebar in netbeans


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Campbell Ritchie
Sheriff

Joined: Oct 13, 2005
Posts: 37891
    
  22
If you are saying your object is a MouseMotionListener, then you are telling the compiler it has the 5 methods of that interface. Details here. So you have to implement 5 methods, even if some of them are empty, and you have to ensure that the method names are spelt correctly, same return type, etc. Remember they are all implicitly "public".
 
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subject: [newbie] The type MouseComponent must implement the inherited abstract method MouseMotionListener...
 
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