Objects that subclass the Observable class maintain a list of observers. When anObservable object is updated it invokes the update() method of each of its observers tonotify the observers that it has changed
Latest Answer : Observer observe only those class which are Observable. ...
Yes, a lock can be acquired on a class. This lock is acquired on the class's Class object..
Latest Answer : Aditya Pls write code and explain ...
The Vector class provides the capability to implement a growable array of objects
Latest Answer : A vector implements dynamic array, which can grow and shrink dynamically.It is similar to Arraylist with a difference that vector can be synchronized. it also contain some legacy methods. ...
A (non-local) inner class may be declared as public, protected, private, static, final, orabstract.
Latest Answer : A non-static member class means inner class is a member of an enclosing class, it can have any accessiblity:public,default,protected, or private. ...
setBounds()
Latest Answer : component.setBounds(-,-,-,-); ...
The EventObject class and the EventListener interface support event processing.
Latest Answer : Java.util.Event class ...
Panel
Latest Answer : The Immediate super class of Applet is PANEL ...
Window
Latest Answer : System.Windows.Forms.CommonDialog ...
The CheckboxMenuItem class extends the MenuItem class to support a menu item thatmay be checked or unchecked.
The java.awt.AWTEvent class is the highest-level class in the AWT event-classhierarchy.