Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

what are three ways in which a thread can enter the waiting state? : Java thread

1018

explain different ways of using thread? : Java thread

1013

what do you understand by synchronization? : Java thread

991

what are three ways in which a thread can enter the waiting state? Or what are different ways in which a thread can enter the waiting state? : Java thread

970

what is the purpose of the wait(), notify(), and notifyall() methods? : Java thread

992

what is thread? What are the high-level thread states? : Java thread

1275

what is a working thread? : Java thread

1039

what is the difference between preemptive scheduling and time slicing? : Java thread

1034

what happens when a thread cannot acquire a lock on an object? : Java thread

1049

what is synchronization and why is it important? : Java thread

1093

what is the difference between a threads start() and run() methods? : Java thread

1012

how can you take care of mutual exclusion using java threads? : Java thread

1048

why are wait(), notify() and notifyall() methods defined in the object class? : Java thread

988

what is a green thread? : Java thread

1022

how to create multithreaded program? Explain different ways of using thread? When a thread is created and started, what is its initial state? Or extending thread class or implementing runnable interface. Which is better? : Java thread

1033

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Un-Answered Questions { Core Java }

What is the difference between Grid and Gridbaglayout?

1244

Can we force the garbage collection to run?

950

Do you need to import math in java?

1006

How to pass arraylist to stored procedure in java?

1173

What are the legal operands of the instanceof operator?

1023

Do we have pointers in java?

979

Explain the use of sublass in a java program?

1025

Which is easier netbeans or eclipse?

1060

What are autoboxing and unboxing? When does it occur?

957

Can we create object of inner class in java?

945

Explain about the dynamic behavior of core java?

1138

What is a void method?

921

What are loops in java?

1269

What is a hashmap used for?

1248

Is alive in java?

947

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