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 the full form of jpeg?

978

What is use of super keyword?

984

Why is a singleton bad?

966

What is the relationship between class and object?

1062

What is the benefit of singleton pattern?

1001

What's a method in programming?

1101

What is the benefit of lambda expressions?

1088

Why are constructors used?

1043

Why do we declare a class static?

1183

When should I use singleton?

1056

What is the effect of keeping a constructor private?

966

What is the use of inner class?

1061

What languages are pass by reference?

1070

What is singleton class example?

1051

What is the difference between class forname and new?

1020

Un-Answered Questions { Java Related }

How to debug my ant script?

1044

Two databases there (oracle and db2),so I want 3 datasources for oracle and 2 data sources for db2 so create 3 datasource names for oracle and 2datasourcename for db2 is possible or not?

1072

What is default switch case? Give example.

1030

What is bean? Where it can be used?

1109

What are the different types of interfaces in the api component?

995

What is javax annotation generated?

962

Objects or references which of them gets garbage collected?

981

Why is spring so important?

498

What is aop module?

436

Why can't we make a class private in java?

1052

How list contains works in java?

999

Can a lock be acquired on a class in java programming?

1008

What is the java virtual machine?

1109

How many types of deployment descriptors are available? What are they?

871

What is spring boot rest api? : Spring Boot

528

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