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 Related Questions 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. ... The >> operator carries the sign bit when shifting right. The >>> zero-fills bits that havebeen shifted out. Latest Answer : While dealing with (+)ve numbers there is no difference between >>> and >> operators.Both operators shift zeros into the upper bits of a number.The difference arises when dealing with (-)ve numbers.Since (-)ve numbers,(-)ve numbers have ... When a task invokes its yield() method, it returns to the ready state. When a task invokesits sleep() method, it returns to the waiting state. Latest Answer : yield method is mainly used to release the lock of resource and pull up in to steady state from wait pool. Sleep() will pull the thread to sleep for the given time. It will throws exception while trying to intrupt in b/w the sleep state ... Under preemptive scheduling, the highest priority task executes until it enters the waitingor dead states or a higher priority task comes into existence. Under time slicing, a taskexecutes for a predefined Latest Answer : 1. Pre-emptive Scheduling.Ways for a thread to leave running state -· It can cease to be ready to execute ( by calling a blocking i/o method)· ... The CheckboxMenuItem class extends the MenuItem class to support a menu item thatmay be checked or unchecked. If an expression involving the Boolean & operator is evaluated, both operands areevaluated. Then the & operator is applied to the operand. When an expression involvingthe && operator is evaluated, the Latest Answer : & -> for bitwise operation&&-> for logical comparison ... A break statement results in the termination of the statement to which it applies (switch,for, do, or while). A continue statement is used to end the current loop iteration andreturn control to the loop Latest Answer : The break keyword halts the execution of the current loop and forces control out of the loop. The continue is similar to break, except that instead of halting the execution of the loop, it starts the next iteration. ... A non-static inner class may have object instances that are associated with instances ofthe class's outer class. A static inner class does not have any object instances. Latest Answer : The static inner classes can be accessed with out creating it's objects or we can access static inner classes with direct class name but in the case of non-static inner classes access we have to create the object of that class. ... String objects are constants. StringBuffer objects are not. Latest Answer : see the following line of codeclass abc{ public static void main(String args[]) { String ab=new String("test");ab.replaceFirst("e","b");System.out.println(ab); }}guess what the result be No it will not replace e with b .Thats ... The Frame class extends Window to define a main application window that can have amenu bar. Latest Answer : Frame can be part of the window but window can not part of the frame. like e.g. when you will create frames with the help of HTML at that time you see many frames in a one window but we can't make a window in frame so we can say fram is a part of ...
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