Java Related Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Java Related Interview Questions

Questions Answers Views Company eMail

Explain the difference between map and flatmap stream operation?

1269

Write a program to print 15 random numbers using foreach of java 8?

936

Explain the difference between intermediate and terminal operations in java8?

1115

Write a program to print count of empty strings in java 8?

1006

Explain spliterator in java8?

1049

Explain the difference between collection api and stream api in java8?

975

How to create a base64 decoder in java8?

1057

What is the difference between array and array list in java?

1232

What is the difference between hashmap and hashtable in java?

1125

What is the difference between hashset and treeset in java?

1069

What is servlet? Explain

1067

What is socket in java?

1068

What is network programming in java?

1001

Explain the difference between jakarta struts and apache struts?

944

What do you mean by actionmapping?

968

Un-Answered Questions { Java Related }

Give example to differentiate between call by value and call by reference.

1063

Does variable declaration allocate memory?

1045

What do you mean by composition in java?

1026

What is java instanceof operator?

1045

Differences between external iteration and internal iteration?

1162

For JMS-enabled application, what are the core JMS-related objects required?

867

How does hibernate proxy work?

393

Why is there no polymorphic-type response from a create() or find() method? : BEA Weblogic

1034

Define the purpose of the serializedsystemini.dat file?

945

What steps are needed to create a new promotion type?

841

How many ways to start and stop weblogic servers?

968

What is java spring framework?

440

What are the different types of events of listeners?

388

What is flatmap in rxjs?

947

How to configure a DB connection pool ?

1129

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