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

Java J2EE (14736)
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Java Related Interview Questions

Questions Answers Views Company eMail

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

963

Explain the difference between inner and outer join ?

1028

What are temp tables ?

980

What is database deadlock ?

1177

What should be done for auto generating primary key id in a table ?

973

Can we have foreign key reference to a non primary key column ?

980

What's the benefit for specifying constraints like not null, primary key explicitly instead of specifying it against the column ?

960

If you are given a choice to implement the code to either insert a record or update if already exist, which approach will you follow ?

994

What is database deadlock ? How can we avoid them?

1049

Describe the steps needed to execute a sql query using jdbc.

980

Which constraint cannot be specified as an explicit constraint and should be specified with the column only ?

928

What is jdbc? Describe the steps needed to execute a sql query using jdbc.

916

Does sql allow null values ?

964

Write an sql to find all records having all upper case alphanumeric characters in a field ?

939

What are the different class loaders used by jvm?

1094

Un-Answered Questions { Java Related }

What are common JDBC Exceptions?

972

What is the use of @repository in spring?

431

Can a class be final?

936

Why do we need singleton?

962

How can we refresh automatically when new data is entered into the database?

1100

What is JDBC ResultSet?

1139

What is the procedure for the creation of stateless ejb?

972

What is sorting in java?

984

What is method with example?

1108

What are struts?

893

Hello Everyone.. I m trying to develop a java swing application where i can display a doc file Jeditorpane or Jtextpane.

2181

Can you deploy more than one application in single jvm?

845

What is the difference between an oem and odm?

408

What is a singleton factory?

954

What is internal variable?

1008

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