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 is the purpose of the wait(), notify(), and notifyall() methods in java programming?

1093

What restrictions are placed on method overriding in java programming?

1023

What is the purpose of the enableevents() method in java programming?

1205

What is the difference between static and non-static variables in java programming?

993

What is a native method in java programming?

1084

How can a gui component handle its own events in java programming?

1058

What happens when a thread cannot acquire a lock on an object in java programming?

1034

Is java a super set of javascript?

1119

What is the difference between the boolean & operator and the && operator in java programming?

1060

Can a lock be acquired on a class in java programming?

1006

What do heavy weight components mean in java programming?

967

Name component subclasses that support painting in java programming?

1087

What class allows you to read objects directly from a stream in java programming?

1091

Name container classes in java programming?

1121

What is the vector class in java programming?

1098

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Un-Answered Questions { Core Java }

What is the instance of an object?

1210

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

1168

What is the difference between synchronized and synchronized block?

1078

What is void in java?

1092

How is string stored in java?

1073

What does the string method compareto () do?

1072

How does java enable high performance?

1159

Can we have a try block without catch block?

1008

How do you include a string in java?

1015

Difference between string, string builder, and string buffer?

1121

Can we define package statement after import statement in java?

1049

is there a separate stack for each thread in java? : Java thread

987

What is the difference between a break statement and a continue statement?

1052

Which is bigger double or float?

995

Can a main method be declared final?

1066

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