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Have you used any version control
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What is the latest version of JDBC. What are the new features are added in that
haijing
- Jun 9th, 2007
The JDBC 3.0 API is the latest update of the JDBC API. It contains many features, including scrollable result sets and the SQL:1999 data types.
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How have you done validation of the fileds in your project
Prasad MN
- Mar 8th, 2013
Yes.
Using of the validation framework we can do the form validations. Struts provides ready made validation. Using of the validation.xml file we can do the form validation.
Second approaches is using javascript. -
What is the main difficulties that you are faced in your project
suraj20p
- Oct 28th, 2011
If u are working with struts,and your form bean scope is session,then its difficult to manage the state of radio button,checkbox and select box,since they dont participate in the url request formation.
We can use reset() to solve these problem -
What are the advantages of developing an n-tiered system
Sandhya.Kishan
- Mar 24th, 2012
Some advantages 1.N-Tier systems are useful as they allow a business to utilize any combination of software and hardware resources that they want or need it also allows to add on any components that...
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Why is it often difficult to separate the business layer from the data access layer
reddybajjuri
- Mar 27th, 2007
No,U can not say it is difficult.If u take MVC architecture Model will take care of that with the help of Controller servlets.....
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Variable shadowing with example
sujatham
- Aug 2nd, 2007
In the below program local variable is shadowed with field variable.class shadowing{int i=20;System.out.print("Value of i:");System.out.println(i);void method(){int i=10;System.o...
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Which containers use a border Layout as their default layout
The window, Frame and Dialog classes use a border layout as their default layout.
Sandhya.Kishan
- Apr 24th, 2012
The border layout is used as default layout in Window, Frame and Dialog class containers.
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Can a lock be acquired on a class
Yes, a lock can be acquired on a class. This lock is acquired on the class's Class object.
jimmy514in
- May 18th, 2010
You can acquire a lock on the class usingsynchronized keyword on the static method.ex:public static synchronized void myfunction(){//function body}
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What's new with the stop(), suspend() and resume() methods in JDK 1.2
The stop(), suspend() and resume() methods have been deprecated in JDK 1.2.
Sandhya.Kishan
- May 8th, 2012
The stop(), suspend() and resume() methods are marked as obsolete to warn against its use in the future so that it may be phased out.
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Is null a keyword
The null value is not a keyword.
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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 method is used to specify a container's layout
The setLayout() method is used to specify a container's layout.
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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 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 the Collections API
The Collections API is a set of classes and interfaces that support operations oncollections of objects.
jimmy514in
- May 18th, 2010
Collection API provides a rich set of interfaces and collection framework clases like:ArrayListVectorHashSetHashMapHashTableTreeSetand a list of interfaces:List, Set, Trees.
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Which characters may be used as the second character of an identifier, but notas the firstcharacter of an identifier
The digits 0 through 9 may not be used as the first character of an identifier but they maybe used after thefirst character of an identifier.
jimmy514in
- May 18th, 2010
$ _ can be used as first charactersAny numbers from 0-9 can be used as second letter but not as the first letter.
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What is the List interface
The List interface provides support for ordered collections of objects.
Sandhya.Kishan
- Apr 7th, 2012
List is a collection of ordered sequence which may also contain duplicate elements. The elements in the list can be searched using elements integer index.
List interface provides access for four methods namely:
1.Positional access
2.Search
3.Iterations
4.Range-view -
How does Java handle integer overflows and underflows
It uses those low order bytes of the result that can fit into the size of the type allowed bythe operation.
Sandhya.Kishan
- May 11th, 2012
Java do not handle integer overflow or underflow it just wraps round the value be adding 1 to the maximum values which returns the minimum value.
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What modifiers may be used with an inner class that is a member of an outerclass
A (non-local) inner class may be declared as public, protected, private, static, final, orabstract.
Sandhya.Kishan
- May 11th, 2012
Expect static modifier all other modifiers such public,private,protected,default,abstract and final modifiers can be used with inner class which is a member of an outer-class.
If the inner class contains the static modifier it results in compilation error.
Java Interview Questions
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