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 arraylist in java?

1066

What is queue in java?

1159

Why do we need array in java?

1032

Why arraylist is not synchronized in java example?

1081

What is the use of arraylist in java?

1109

What is a arraylist in java?

1087

Which is better list or arraylist in java?

877

Why do we override tostring method in java?

988

What is the default size of set in java?

974

What is the maximum size of hashmap in java?

1016

Why do we need hashset in java?

1064

What is default size of arraylist in java?

1171

What is an off by one error in java?

974

Which sorting algorithm is best in java?

1001

What is use of map in java?

1025

Un-Answered Questions { Java Related }

What is http servlet in java?

1078

What is difference between queue and topic?

982

What are annotations in java?

1106

Is a copy constructor?

1069

What is the use of spring boot application? : Spring Boot

424

Explain what is spring mvc?

425

What is the difference between state-based unit testing and interaction-based unit testing?

944

How mapping of java objects is done with database tables?

447

Does list allow duplicates in java?

945

What is the better method of using jdbc in spring?

436

What is hikari in spring boot? : Spring Boot

529

Name few "optional" classes introduced with java 8 ?

1149

How can we display validation errors on jsp page?

1023

Can a constructor call another constructor?

996

How do you teach annotations?

383

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