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Java J2EE Interview Questions
Questions Answers Views Company eMail

What is a class in java?

1012

How to display all the prime numbers between 1 and n (n is the number, get the input from user)

980

How to find the largest value from the given array.

1012

Difference between static binding and dynamic binding?

1108

What are the considerations to be made in case of loops in java ?

1033

Which interface does java.util.hashtable implement?

1193

What is the difference between comparable and comparator in java.util pkg?

1122

Which sorting algorithm is used by collections.sort() in java ?

932

Should we create system software ( e.g operating system ) in java ?

1041

Which java collection class can be used to maintain the entries in the order in which they were last accessed?

1046

How is hashset maintained in memory by java ?

1159

What is the use of hashcode in java ?

1102

What is the difference between jpa and hibernate?

533

What are the advantages and disadvantages of sockets?

1070

What is the Difference between socket and servlet?

1266


Un-Answered Questions { Java J2EE }

Which design patterns are used in Hibernate framework?

410


What is java’s garbage collected heap?

977


What is servlet initializer in spring boot? : Spring Boot

442


Can we have this () and super () together?

1043


Explain the difference between comparator and comparable in java?

955


How is it possible for two string objects with identical values not to be equal under the == operator?

992


Write an sql to find all records having all numeric characters in a field ?

971


Is there any sort function in java?

1048


What are the annotation used in spring?

449


What is the purpose of a volatile variable?

1058


What is java servlet container?

938


What is array length in java?

962


Write a simple servlet program to print the contents of html.

1048


how to create multithreaded program? Explain different ways of using thread? : Java thread

986


Can we have a try block without catch block?

985