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

Can we access instance variables within static methods ?

1164

What is the use of optional ?

1102

Difference between doublesummarystatistics, intsummarystatistics and longsummarystatistics ?

1046

Difference between final and effectively final ? Why is effectively final even required ?

1059

Similarity and difference between static block and static method ?

993

Difference between class#getinstance() and new operator ?

1295

What is a lambda expression ? What's its use ?

1170

Describe what happens when an object is created in java ?

1084

Difference between == and .equals() ?

1049

What are default methods ?

1118

Does constructor creates the object ?

1094

What are the difference between composition and inheritance in java?

1103

How is abstraction implemented in java ?

1103

How can we disable a constraint ?

1091

Does sql allow null values ? Can we use it within where clause ?

1043

Un-Answered Questions { Java Related }

Explain about main() method in java ?

1122

What are the advantages of compiled language?

1129

What are the steps involved to create a bean?

1218

I configured the messaging bridge to use the exactly-once quality of service for two-phase transactions. So why am I getting a quality of service is unreachable error? : BEA Weblogic

1056

What is passing parameters in java?

1105

What are the key attributes?

384

Explain about asymmetric clustering?

978

What does indexof mean?

1120

What is the best java compiler?

934

What is the disadvantage of synchronization?

1066

What is mean by exception?

1095

What is the difference between an interface and an abstract class?

1059

What is an example of declaration?

1100

What is the advantage of preparedstatement over statement?

1183

What is a 1 n relationship?

448

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