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

What is the use of JDBC DriverManager class?

1065

What is JDBC Savepoint? How to use it?

1209

What is JDBC Connection isolation levels?

1071

What is JDBC Transaction Management and why do we need it?

1141

What is JDBC API and when do we use it?

1033

What are JDBC Best Practices?

1101

What is “dirty read” in JDBC? Which isolation level prevents dirty read?

1008

How to invoke Oracle Stored Procedure with Database Objects as IN/OUT?

1085

What is CLOB and BLOB datatypes in JDBC?

1275

What is phantom read and which isolation level prevents it?

1092

What is 2 phase commit?

1169

What is SQL Warning? How to retrieve SQL warnings in the JDBC program?

1043

What are the benefits of PreparedStatement over Statement?

1002

What are different types of JDBC Drivers?

1155

What are common JDBC Exceptions?

971

Un-Answered Questions { Java J2EE }

How is string stored in java?

1060

What is the difference between interface & abstract class?

1035

What is @pathparam?

417

Can we use threads in Servlets?

1136

What is the final variable?

1238

What are annotations in spring boot? : Spring Boot

403

What are stateless applications?

1068

What is hibernate configuration?

452

How do you achieve polymorphism in java?

994

What do negative exponents mean?

1037

In web logic how are new threads assigned?

1051

What is thymeleaf template engine?

463

What is a null check?

998

What is java servlet?

1046

What must a class do to implement an interface?

1193

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