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

What is method overloading with type promotion?

1 1291

What are the differences between the constructors and methods?

1147

What is the purpose of static methods and variables?

1057

What is the static import?

1123

What are the advantages of passing this into a method instead of the current class object itself?

1689

What is the difference between checked exception and unchecked exception?

1030

What is super in java?

1011

Can you access the private method from outside the class?

986

What is the abstract class?

1056

What is jdbc driver?

915

How can we store and retrieve images from the database?

978

What are the different types of lockings in jdbc?

941

How can we maintain the integrity of a database by using jdbc?

1103

What is the return type of class.forname() method?

960

How can we retrieve the file in the oracle database?

985

Un-Answered Questions { Java Related }

Which java framework is most popular?

1164

What are the differences between stringbuffer and stringbuilder?

1075

What are the different types of annotations?

426

What is permgen or permanent generation?

1049

What happens if connection is not closed in jdbc?

992

What is difference between entity and table?

479

Explain the difference between plain-validator and field-validator in struts?

970

What is pojo class?

460

What is the importance of init() method in Servlet ?

1095

What is the spring mvc framework?

466

Detail about the architecture of the web sphere?

861

Is udp stateless?

1021

What is a nested class?

1140

What is cdi in spring?

437

which one is more efficient int x; 1. if(x==null) 2.if(null==x) state which one either 1 or 2?

11266

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