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 difference between set and list?

5 41020

Explain the difference between the Boolean & operator and the && operator?

1 8894

What are File and RandomAccessFile classes?

2 7034

What are Font and FontMetrics classes?

1 7099

In which JDK version event-delegation model is introduced?

1 4320

Difference between the String and StringBuffer classes?

3 7441

Difference between the paint() and repaint() methods?

1 15425

Difference between prefix and postfix forms of the ++operator?

3 10048

What is the difference between throw and throws?

IBM,

11 23957

What is yielding and sleeping? how they different?

2 6400

What is Unicast and Multicast object? Where we will use?

Scope International,

1 4107

Explain the difference between Unicast and Multicast objects?

1 5210

What is the frontend and backedn in Java?

TCS,

3 10052

What is the difference between static and non-static variables?

6 26157

What is the difference between the >> and >>> operators?

1 5452

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Un-Answered Questions { Core Java }

Realized?

2239

What is a classloader in java?

1072

What is java string pool?

1068

Write a program to print count of empty strings in java 8?

1071

Differentiate between static and non-static methods in java.

1106

explain different ways of using thread? : Java thread

1068

Explain public static void main(string args[]) in java.

1053

What is the difference between equals() and == in java?

1022

What do you mean by an interface in java?

1084

What is the difference between break and continue statements?

1107

What is parsing in java?

1022

How to create a base64 decoder in java8?

1119

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

1112

What is an object in java and how is it created?

1110

How to sort array in descending order in java?

976

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