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 ?

988

Explain the difference between inner and outer join ?

1049

What are temp tables ?

989

What is database deadlock ?

1209

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

991

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

998

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

979

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 ?

1019

What is database deadlock ? How can we avoid them?

1068

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

995

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

953

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

952

Does sql allow null values ?

983

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

959

What are the different class loaders used by jvm?

1113

Un-Answered Questions { Java Related }

How do I find ojdbc jar version?

953

Why resultset is used in java?

947

What is a memory leak in java?

1089

What is internal variable?

1022

What is the difference between rowmapper and resultsetextractor?

547

What is the difference between @before and @beforeclass annotation?

1131

create a midp application,where user can enter player name and points.the program saves the information to the record using RMS at MIDP device.program should also print out the top 10 player list to the end user.

3428

Explain about the function associated with t3 in weblogic server ?

1074

What is length in java?

1025

What does the “static” keyword mean? Can you override private or static method in java?

1108

What is main method?

1052

How can we display validation errors on jsp page?

1025

What is difference between length and length() method in java ?

1009

What is anagram in java?

946

What are the new features in java 8?

1039

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