Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

Give few examples of final classes defined in Java API?

BirlaSoft,

1287

How is the marker interface used in Java?

BirlaSoft,

1145

Java is Pass by Value or Pass by Reference?

BirlaSoft,

1096

When is the garbage collection used in Java?

BirlaSoft,

1262

what is meant by Garbage collection?

Cap Gemini,

1150

what is meant by HQL?

Cap Gemini,

1124

How many types of literals are there in JAVA?

Cap Gemini,

1106

Where is the singleton class used?

Cap Gemini,

1082

why Java does not support multiple inheritances?

Aspire,

1211

give an example for encapsulation?

Aspire,

1095

Explain the pointers in Java?

Aspire,

1109

what is meant by Byte code concept in Java?

Aspire,

1135

what is meant by abstract class?

Aspire,

1185

what is meant by encapsulation?

Aspire,

1133

what is the difference between Object Based Language and Object Oriented Language?

Aspire,

1087

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Un-Answered Questions { Core Java }

How does arrays sort work in java?

1056

How do you call a reference in java?

1039

How many bytes is double?

1049

What is append in java?

1250

List any five features of java?

1077

What is the purpose of a default constructor?

1168

What are the differences between getting and load method?

1300

What is the meaning of I ++ in java?

1252

Name few java 8 annotations ?

1087

How to split arraylist elements in java?

1234

What is difference between classpath and path variables in java?

1262

What is parseint?

1076

What is immutability in java?

1139

Is main is a keyword?

1063

What is function overriding and overloading in java?

1176

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