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?

1152

What restrictions are placed on method overriding in java programming?

1063

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

1295

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

1051

What is a native method in java programming?

1126

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

1095

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

1080

Is java a super set of javascript?

1163

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

1111

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

1053

What do heavy weight components mean in java programming?

1006

Name component subclasses that support painting in java programming?

1127

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

1155

Name container classes in java programming?

1185

What is the vector class in java programming?

1158

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Un-Answered Questions { Core Java }

What are the differences between heap and stack memory in java?

1112

What is array initialization in java?

1197

Is array an object in java?

1027

Can we increase array size dynamically in java?

1020

What are the 6 functions?

1029

please send me hr interview questions in it industry

2183

Why is String immutable?

1124

What is the difference between public, private, protected, and friend access?

1120

Explain about main thread in java?

1163

What is method reference?

1039

What will happen if non-synchronized method calls a static synchronized method and what kind of lock it acquires?

1216

What is the collection interface?

1065

what is use of functional interface in java 8?

1106

Why main() method is public, static and void in java ?

1146

Can a top level class be private or protected?

1104

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