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 the high-level thread states? : Java thread

1028

how to create multithreaded program? Explain different ways of using thread? : Java thread

999

how to create multithreaded program? Explain different ways of using thread? When a thread is created and started, what is its initial state? : Java thread

1017

what is the volatile modifier for? : Java thread

1006

why are there separate wait and sleep methods? : Java thread

1032

how would you implement a thread pool? : Java thread

927

can I implement my own start() method? : Java thread

996

what is the swingutilities.invokelater(runnable) method for? : Java thread

1046

what is mutual exclusion? How can you take care of mutual exclusion using java threads? : Java thread

1129

what is the difference between process and thread? : Java thread

997

can java object be locked down for exclusive use by a given thread? : Java thread

1105

a thread is runnable, how does that work? : Java thread

1022

what are the states associated in the thread? : Java thread

1068

how does the run() method in runnable work? : Java thread

928

what is an objects lock and which objects have locks? : Java thread

1026

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Un-Answered Questions { Core Java }

What is the static method?

1084

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

967

Is there a sort function in java?

972

When object is created and destroyed?

1110

What is integer parseint?

997

Can we restart a dead thread in java?

996

Is age a discrete variable?

984

What is the use of parseint in java?

1028

Why do we need wrapper class?

1002

What is the difference between interface & abstract class?

1050

Explain about main() method in java ?

1079

What are static blocks in java ?

1115

Why does java have two ways to create child threads?

962

What is the purpose of the finally clause of a try-catch-finally statement in java programming?

960

What is the difference between logical data independence and physical data independence?

1043

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