Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java (6529)
Advanced Java (552)
Swing (223)
EJB (402)

Servlets (804)
Struts (701)
JDBC (771)
JMS (324)

SunOne (10)
J2EE (485)
Weblogic (694)
Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

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?

1047

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

974

How to create a base64 decoder in java8?

1057

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

1231

What is the difference between hashmap and hashtable in java?

1124

What is the difference between hashset and treeset in java?

1068

What is servlet? Explain

1067

What is socket in java?

1065

What is network programming in java?

998

Explain the difference between jakarta struts and apache struts?

944

What do you mean by actionmapping?

968

What is the difference between validation.xml and validator-rules.xml files in struts?

918

How we can configured action mapping in struts?

1014

Un-Answered Questions { Java J2EE }

Compare overloading and overriding?

1005

What is thread life cycle?

967

Is id mandatory in hibernate?

354

Explain how to make updates to the updatable resultsets.

923

Why do we use jdbc?

1015

How may messaging models do JMS provide for and what are they?

1371

How is final different from finally and finalize?

925

What is the benefit of spring boot? : Spring Boot

470

How to get ip address in jsp login page and how to validate like 127.1.0.1 all should not be greater than 255

3395

What is stored procedure. How do you create stored procedure ?

1953

What are predefined functions?

1133

How do you end a program?

1116

How hashmap works in java?

1044

What is the purpose of methodology?

1080

Why does jvm come up automatically though I stop/kill the process manually?

907

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