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 state does a thread enter when it terminates its processing? : Java thread

1063

What is threaded programming and when is it used? : Java thread

1080

what is the difference between the methods sleep() and wait()? : Java thread

994

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

1007

how does multithreading take place on a computer with a single cpu? : Java thread

1168

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

984

how do I create a runnable with inheritance? : Java thread

999

which class is the wait() method defined in? : Java thread

964

what is daemon thread and which method is used to create the daemon thread? : Java thread

979

what invokes a threads run() method? : Java thread

1028

what are synchronized methods and synchronized statements? : Java thread

1012

describe synchronization in respect to multithreading? : Java thread

942

what is mutual exclusion? : Java thread

1036

what is thread? : Java thread

1000

extending thread class or implementing runnable interface. Which is better? : Java thread

1012

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Un-Answered Questions { Core Java }

Explain 5 io best practices?

1054

Can an interface have a constructor?

992

difference between byte stream class and character stream class?

4572

Why is it called a string?

1028

Is sizeof a keyword in java programming?

1076

What are the drawbacks of singleton class?

1025

What is an object class?

1040

Why java is called not pure object oriented language?

1037

Why local variables are stored in stack?

997

What are filterstreams?

1091

Explain how can you debug the Java code?

1085

How do I stop concurrentmodificationexception?

1053

Explain about static nested classes in java?

1080

What is the unit of plancks constant?

1067

What is :: operator in java 8?

1038

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