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What class is the top of the AWT event hierarchy
The java.awt.AWTEvent class is the highest-level class in the AWT event-classhierarchy.
Sandhya.Kishan
- Apr 14th, 2012
The AWT event hierarchy is
java.lang.object ----> java.util.Eventobject ----> java.awt.AWTevent ----> java.awt.event.Hierarchyevent. -
When a thread blocks on I/O, what state does it enter
A thread enters the waiting state when it blocks on I/O.
Sandhya.Kishan
- Apr 14th, 2012
The thread enters a blocked state when it is blocked on i/o,and hence it waits for the resources which is held by other thread and then it enters the running state where the thread gets executed.
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Which method of the Component class is used to set the position and size of acomponent
setBounds()
Sandhya.Kishan
- Apr 13th, 2012
The method which is used to set position and size of a component is setBound() method present in the component class.
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What is the middleware. What is the functionality of Webserver
Sandhya.Kishan
- Apr 13th, 2012
The software application which provided software services beyond the services provided by the operating system is known as middleware.Middleware makes it easier for software developers to perform comm...
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Is sizeof a keyword
The sizeof operator is not a keyword.
Sandhya.Kishan
- Apr 13th, 2012
Sizeof is not a keyword but it is an unary operator which is used to calculate the size of datatype, which is measured in terms of bytes.
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What is the difference between the >> and >>> operators
The >> operator carries the sign bit when shifting right. The >>> zero-fills bits that havebeen shifted out.
Sandhya.Kishan
- Apr 13th, 2012
>> and >>> are both shifting operators.
>> shifting operator carries the sign when a number is being shifted right.
>>> shifting operator fills the spaces with zero for a number which is been shifted right. -
How do you download stubs from a Remote place
Sandhya.Kishan
- Apr 13th, 2012
By using the URL values present in rmi registry in JAVA we can download stubs from a remote place.
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What is the main functionality of the Remote Reference Layer
Sandhya.Kishan
- Apr 13th, 2012
Transport independent functioning of Remote Method Invocation(RMI) protocol is supported by the Remote Reference Layer(RRL) .
RRL acts as an interface between the skeleton layer and transport layer protocols.
Remote object references are created and managed by RRL. -
How will you call an Applet using a Java Script function
Sandhya.Kishan
- Apr 13th, 2012
We can call an applet using "document.javaapplet_name.script" function.
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How does thread synchronization occurs inside a monitor
Sandhya.Kishan
- Apr 13th, 2012
Thread synchronization can be done using synchronization class or the monitor itself acts as an object where single thread can be executed at a particular time and hence no other thread can enter the monitor.
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What is the difference between File and RandomFileAccess classes
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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What is the corresponding Layout for Card in Swing
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What is the preferred size of a component
The preferred size of a component is the minimum component size that will allow the component to display normally.
Sandhya.Kishan
- Apr 10th, 2012
The minimum size which is present for a component to display normally is known as preferred size.
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What state does a thread enter when it terminates its processing
When a thread terminates its processing, it enters the dead state.
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What is an Iterator interface
The Iterator interface is used to step through the elements of a Collection.
Sandhya.Kishan
- Apr 10th, 2012
The Iterator interface lets you step through the objects that a collection contains.
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Which containers use a FlowLayout as their default layout
The Panel and Applet classes use the FlowLayout as their default layout.
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What method is used to specify a container's layout
The setLayout() method is used to specify a container's layout.
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What are session variable in Servlets
Sandhya.Kishan
- Apr 7th, 2012
The variables which are used for set of requests or for a single site visit are known as session variables. eg:the users selection in a shopping cart application can be stored with the help of session variables.
There are two session variables namely getSession() and setAttribute(). -
Write a program for recursive Traverse
Sandhya.Kishan
- Apr 7th, 2012
"c public void preorder( ) { if( root == null ) return; Stack stack = new Stack( ); stack.push( root ); while( ! stack.isEmpty( ) ) { Node current = st...
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What is client server computing
Sandhya.Kishan
- Apr 7th, 2012
Client-server computing is a computing where the server provides a service or a function to the clients which initiates the request for the services. It is a distributed computing model. The server is...
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