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Can we give array size is 0?
Yes
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Which of the function returns a reference to an object provided by an ActiveX component. a) createobject b) getobjectname c) createobjectx d) getobject
subhash gherade
- Jan 23rd, 2010
D ) getobjectReturns a reference to an object provided by an ActiveX component.SyntaxGetObject([pathname ] [ , class ] )
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What is the difference between JRE and JVM?
g4java
- Aug 17th, 2007
We can put it like JVM intigral part of JREJRE supports other applications also like browsers.
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How to sort an integer array without using array sort ()?
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What is the difference between servlet init( ) and servlet destroy( ) methods?
g4java
- Aug 17th, 2007
Init() is the beginning of the servlets life cycle and destroy is the end of it.
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Class A { void add(); } class B { void add();}class Ex {public static void main(string args[]) {A a=new B();B b=new A();a.add();b.add();}What is the result;
agsuvidha
- Aug 14th, 2007
There is an error in this program. as if u see clearly, class A is an abstract class and abstract class can not be instantiated.
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There is a class in which it has 3 variables: static int ii; transient int j; int k; if we create an object for the above class which is serializable then what are the variables available in the object?
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Differences and usage senarios of synchronised method and synchronised block ?
hemasundar
- Jan 2nd, 2008
We use synchronized methods or synchronised blocks to?make your application thread safe.?You can use synchronized methods, but the problems may be:1. It degrades the performance of your application....
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How to create a Tabbed Pane in JSP page?
nauityal
- Dec 24th, 2007
//declareprivate JTabbedPane pane ; //initialisepane = new JTabbedPane(); //add GUI components to the TABPANEpane.addTab(nameoftab, component);
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Which one of the following is a limitation of sub classing the Thread class?
Choice 1 It cannot have any static methods in the class. Choice 2 It must declare the class final. Choice 3 It cannot subclass any other class. Choice 4 It must implement the Threadable interface. Choice 5 It must catch the ThreadDeath exception
anithananduri
- Apr 10th, 2009
Choice 3 It cannot subclass any other class. because java supports multiple inheritance with interfaces not with classesChoice 4 It must implement the Threadable interface. another way of creati...
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What is the difference between normal validations (validator.xml) and struts validations?
sree2880
- Oct 6th, 2007
difference in validator.xml and dyna validator is:validator.xml :In this we have to set the bean like"examplebean.java" where as in dynavalidator or struts validations we assign t...
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What is the use of assertion?
dear_srik
- Oct 27th, 2007
Assertions are kind of mechanisms in java from 1.4 onwards, where assert is a keyword. By using assertions you can validate your assumptions. Assertions should be only used to validate certain assumpt...
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Why applets can run without main() method?
B'coz they can run with the help of different browsers...
anithananduri
- Apr 10th, 2009
Applet program is executed by the browser not using the Java command, so main method is useless.
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What is wrong in the following code?pulic synchronized void setXXX(String s){ this.setXXX(s);}public synchronized String getXXX(){...}orpulic synchronized void setXXX(String s){ return (this.getXXX());}
GEEK_ALOK
- Jan 15th, 2008
There is a return statement in the set() method because return type of this method is void.............
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How do you add two numbers using bitwise operators ?
leena singhal
- Jun 16th, 2008
We can add 2 numbers using xor operator but it will not handle carry therefore, we first use and operator on those 2 numbers n den take a xor of dem ...shift d res of and by 1 bit and den wil xor again the res of shift with d prev xor res....until carry=0i thnk it will work
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What is the difference between final, finally and finalize?
shaik subhani
- Dec 26th, 2007
final is a keyword used to declare constants. finally block is used in an exception handling.whether there is an exception or not in try block in , finally block will be executed.we used to provide th...
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How do you track Ip in Java ?
ravi_1229
- Mar 24th, 2008
try this piece of code: java.net.InetAddress remoteInetAddress = java.net.InetAddress.getByName(request.getRemoteHost()); String client=remoteInetAddress.getHostName(); System.out.print(client);
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Java Reflection
What is reflection and its use in java?
nkamuni
- Dec 19th, 2007
Reflection is commonly used by programs which require the ability to examine or modify the runtime behavior of applications running in the Java virtual machine. This is a relatively advanced feature a...
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How to retrieve email ids from distribution list?
We have a small requirement where we need to retrieve the e-mail ids of all the employees in the distributed list using LDAP, can any one give an idea how it can be done?
aravind.pk
- Jan 31st, 2008
Hey did you got answer for your query? i too is in requirement of answer for your query.infact, my requirement is "how to access and display the contacts in a distribution list using java?"
Java Interview Questions
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