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

Define how objects are stored in java?

1085

What are classloaders?

1044

Can an interface extend another interface?

1069

What is downcasting?

1141

Is jdk required on each machine to run a java program?

1323

Which arithmetic operations can result in the throwing of an arithmeticexception?

1040

Why generics are used in java?

1073

Define how destructors are defined in java?

1043

Which number is denoted by leading zero in java?

1262

What is an enumeration?

1082

What is a layout manager and what are different types of layout managers available in java awt?

1263

What is an object’s lock and which object’s have locks?

985

What will be the output of round(3.7) and ceil(3.7)?

1140

How do you decide when to use arraylist and linkedlist?

1010

Which object oriented concept is achieved by using overloading and overriding?

1137

Un-Answered Questions { Java Related }

Is java still relevant?

992

What is the use of the list interface in the java collection? : java collections

1043

What is session evict in hibernate?

401

What are data structures in java?

993

How many types of constructors are there in java?

864

What are singleton services?

934

How can I get to know all the active promotions without going to management center?

847

How to notify an object in session when session is invalidated or timed-out?

1105

What are the main uses of this keyword?

1082

What is the purpose of execute() method?

1093

Can a constructor be private and how are this() and super() method used with constructor?

1023

What exactly is a servlet?

1032

What is singleton pattern?

1132

What can I do when I get java.lang.outofmemoryerror because producers are faster than consumers? : BEA Weblogic

989

Explain the difference between jdk, jre, and jvm?

1057

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