getLabel() and setLabel()

Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• Mar 31st, 2012

To set the text label displayed by a Button object we use the method "button.setLabel(label).
To get the text label displayed by a Button object we use the method "button.getLabel().

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Canvas

Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• May 4th, 2012

Canvas is the component subclass used for drawing and painting.

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The result is a String object.

Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• Apr 5th, 2012

The result of adding a double value to a string is a "string object" .
When we add double value to a string the value gets converted and it is appends to the original string and hence a new string object is created.

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The List interface provides support for ordered collections of objects.

Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• Apr 5th, 2012

The behavior of the collection of objects is indicated by a list interface.It is an extension of collection interface.It allows one or more and duplicate objects to be null.

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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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sujatham

 Profile Answers by sujatham Questions by sujatham

• Aug 2nd, 2007

1.wait(),notify(),notifyAll()   methods can only be executed on an object whose lock the thread holds, otherwise, the call will result in an IllegalMonitorStateException.2.wait(),notify(),no...

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Skant

• Jul 18th, 2006

Socket is composed of source/dest. ip address source/dest. port no. and the protocol used at layer 4.

Arun

• Jul 21st, 2005

A method of communication between two processes. A socket is an identifier that the application uses to uniquely identify an end point of communications. The user associates a protocol address with the socket by associating a socket address with the socket.

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Sumeeth R Tewar

• Jul 12th, 2006

ServerSocket is a class for creating a server side connection for remote clients to connect to,On client connection success, returns an ordinary socket which can later be used to communicate with...

Arun

• Jul 21st, 2005

A server socket waits for requests to come in over the network. It performs some operation based on that request, and then possibly returns a result to the requester.

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Sumeeth R Tewar

• Jul 13th, 2006

Java Mail Api provides capability to a java application. to read and write emailsusing smtp , pop3 , imap etc

Pattukkottai Arun

• Jul 21st, 2005

Through the JavaMail API, applications can connect to a Simple Mail Transport Protocol (SMTP) server to send and receive email. 

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Pattukkottai Arun

• Jul 21st, 2005

Serialization is the process of taking an object and converting it to a format in which it can be transported across a network or persisted to a storage location. The storage location could be as simp...

sudhakar

• Jul 8th, 2005

Serialization means converting the data into bytes and deserialization means converting bytes into text data .

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Pattukkottai Arun

• Jul 21st, 2005

All applets have the following four methods:  public void init(); public void start(); public void stop(); public void destroy();  

suman medisetti

• Jul 18th, 2005

Init() start() stop() destroy()

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Rajesh Sakhamuri

• Nov 3rd, 2005

Try&catch blocks are to get the error description.wothout try block there is no catch.finally contains compalsary statements,to disconnect the database statement.wothout try there is no finally.By RAJESH

Pattukkottai Arun

• Jul 21st, 2005

The simple Try statement comes before the block of code, the Catch block of code is where we specify what type of error to look for, and the Finally block of code is always executed and contains clean...

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kgopalakrishna

 Profile Answers by kgopalakrishna Questions by kgopalakrishna

• Jun 9th, 2011

Final:final is the constant ;finally:'finally is the key word.this is is ?finally block is doing free from errors.?

jagadish kumar ch.

• Jul 13th, 2005

final is used for declaring a variable as a constant, final class can't be inherited, final methods cannot be overloaded but overridden  finally statement should execute not depending upon ...

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Pattukkottai Arun

• Jul 21st, 2005

The difference is that a HashMap stores all of its data inside of a hash table while a TreeMap stores all of its information in a tree.

jagadish kumar

• Jul 13th, 2005

Tree map is sorted where as HashMap is not sorted

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Sandhya.Kishan

 Profile Answers by Sandhya.Kishan Questions by Sandhya.Kishan

• Apr 13th, 2012

The directories and files of local class of file system can be encapsulated using file class. In file class if we need to access some nth byte of the file then the file should be read from 0 byte to n...

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Sumeeth R Tewar

• Jul 13th, 2006

yield() is used on a thread object to relinquish resources allocated to it.and sleep() is used to take a thread in a waiting state for the specified time in milliseconds.  

Pattukkottai Arun

• Jul 21st, 2005

When a task invokes its yield() method, it returns to the ready state. When a task invokes its sleep() method, it returns to the waiting state.  

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Sumeeth R Tewar

• Jul 13th, 2006

event delegation model allows other objects to handle the events rather than the objects on which they were produced,Also uneccessary events are not handled.

Rajasekhar

• Sep 1st, 2005

Whether there is any class method in jsp to find from which page the request has come to the current page?

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koti

• Mar 25th, 2007

Almost all classes from util package comes under collection classes(ArrayList,HashMap....)

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sudharsan

 Profile Answers by sudharsan Questions by sudharsan

• Jun 13th, 2011

java.util.Concurrent ( Queues) 

Guest

• Mar 21st, 2005

Java.util.Concurrent ( Queues)

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jagadish kumar

• Jul 13th, 2005

Stack

Guest

• Mar 21st, 2005

Java.util.Stack

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