sawati dash

• Apr 18th, 2005

Used in synchronised method to bring the thread for wait state.

Sailaja V

• Mar 11th, 2005

To wakes up the threads which are in waiting stateaddition notes:-notify() wakes up a single thread which is waiting on the object's lock notifyAll() wakes up ALL waiting threads; the scheduler decides which one will run they can only be used within synchronized code

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Lavanya

• Apr 14th, 2005

HashMap is unsynchronized whereas HashTable can be synchronized.  HashMap allows null value as key, but HashTable does not permit nulls.  HashMap does not guarantee that the order of the map will remain constant overtime.

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Lavanya

• Apr 14th, 2005

There are three thread priorities: Min - Priority with a value of 1  Max - Priority with a value of 10  Normal-Priority with a value of 5  

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Prakash

• Apr 8th, 2005

FileReader FR = new FileReader("C:/input.txt"); BufferedReader reader = new BufferedReader(FR); //Used for reading line by line while( (reader.readLine())!=null) {  //Write ur logic here }

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saurav sen

• Apr 1st, 2005

Yes it can be reversed, you can reverse a class file into a .java file, using a freely available tool named DJ JAVA DECOMPILER. A bytecode is effecient as it is compile once and run anywhere all it ne...

viswanath

• Mar 14th, 2005

If you develop a software and willing to give share & use your interfaces but not the inner workings, there definitely needs to be a mechanism to hide your implementations. If java compiles to machine...

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Mehboob basha

• Mar 29th, 2005

Jsp converts into Java(Servlet).This process is called the translation Unit in the JSP.l

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FINAL for a variable : value is constantFINAL for a method : cannot be overriddenFINAL for a class : cannot be derived

vmshenoy

 Profile Answers by vmshenoy Questions by vmshenoy

• Feb 9th, 2006

Final when written in front of a variable it means that the value assigned to that variable is constant.It is similar to const keyword as in C.eg final int a=8;This means that variable a ,through out ...

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A reachable object cannot be garbage collected. Only unreachable objects may begarbage collected..

sujatham

 Profile Answers by sujatham Questions by sujatham

• Jul 29th, 2007

No. An object cannot be garbage?collected?when it is reachable.

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No, it is not.

sujatham

 Profile Answers by sujatham Questions by sujatham

• Aug 2nd, 2007

No.There is no compound coditional?compound assignment? operator.

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sujatham

 Profile Answers by sujatham Questions by sujatham

• Aug 2nd, 2007

Byte, short, int, long, boolean, float?and double.

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Unicode requires 16 bits and ASCII require 7 bits. Although the ASCII character set usesonly 7 bits, it is usually represented as 8 bits. UTF-8 represents characters using 8, 16,and 18 bit patterns. UTF-16 uses 16-bit and larger bit patterns.

A task's priority is an integer value that identifies the relative order in which it should beexecuted with respect to other tasks. The scheduler attempts to schedule higher prioritytasks before lower priority tasks.

Most of the AWT-related events of the event-delegation model are defined in thejava.awt.event package. The AWTEvent class is defined in the java.awt package.

The event-delegation model has two advantages over the event-inheritance model. First,it enables event handling to be handled by objects other than the ones that generate the events (or their containers). This allows a clean separation between a component's designand its use. The other advantage of the event-delegation model is that it performs muchbetter in applications where many events are generated....

A Java source code file takes the name of a public class or interface that is defined withinthe file. A source code file may contain at most one public class or interface. If a publicclass or interface is defined within a source code file, then the source code file must takethe name of the public class or interface. If no public class or interface is defined within asource code file, then the file...

A Canvas object provides access to a Graphics object via its paint() method.

An object's lock is a mechanism that is used by multiple threads to obtain synchronizedaccess to the object. A thread may execute a synchronized method of an object only afterit has acquired the object's lock. All objects and classes have locks. A class's lock isacquired on the class's Class object.

The elements of a BorderLayout are organized at the borders (North, South, East, andWest) and the center of a container.

An object reference be cast to an interface reference when the object implements thereferenced interface.

The fractional part of the result is truncated. This is known as rounding toward zero.