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Core Java Interview Questions
Questions Answers Views Company eMail

how to transactions(Bank transactions) in business process in ejb?

Photon,

1 2962

what is use of session tracking ?with example?

Photon,

1 5021

why ,we are using jsp and html.which one is better?

Photon,

2 8255

what is the use of servlet engine?

Photon,

2 9237

what is ejb? what is the importance of ejb?

Photon,

2 7541

what is jndi?

TCS,

1 3584

what is java bean?where can we use it?

TCS,

12 23442

what is features of jdk 1.5?

Accenture, Satyam, TCS,

2 11321

different types of threads?

TCS,

18 48254

in a constructor what happen if u call super and this in the same class? i know that it is not possible to call both in the same one? if we call what will happen?

ITC Infotech,

10 10532

how exactly garbage collection take place?

4 4085

when i write string s1="java"; in one program(application) and string s2="java"; in another application on the same jvm will both objects s2,s2 will refer to same memory location where "java" is stored in string pool.

2 3855

Why operator overloading is not in Java?

1185

What is the difference between throw and throws? What is the similarity between try and throw?

2 4122

What is the need of "creating and throwing an UserdefinedException" when the "Exception" class is already available?

4 4006


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Un-Answered Questions { Core Java }

How many techniques can be employed to create a string object?

133


What is method in java with example?

109


How does sublist works in java?

109


Can I import same package/class twice?

138


What are locale settings?

122






Why are arrays useful in java?

107


What is byte data type?

112


What do you understand by access specifiers in Java?

189


What is primitive array?

127


Why is stringbuffer thread safe?

103


Can we override private method in java?

115


Hi friends am new to java. I read jar file means collection of java files. For executing struts application what are the necessary jar files. " struts.jar " file contains what. can u explain

1041


What is better- service oriented or batch oriented solutions?

233


Why is core java important?

122


What is the difference between a synchronized method and a synchronized block?

142