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 are default methods ?

1103

Does constructor creates the object ?

1076

What are the difference between composition and inheritance in java?

1075

How is abstraction implemented in java ?

1083

Can we use string in the switch case?

1091

How hashset works internally in java?

1136

What is the role of the java.rmi.naming class?

1136

What are untrusted applets?

1196

Can you access non static variable in static context?

1096

Why java does not support pointers?

1085

What is the use of callablestatement?

1057

What is the importance of hashcode() and equals() methods?

1090

How do you print array in java?

1044

Why string objects are immutable in java?

1083

What an i/o filter?

1081

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Un-Answered Questions { Core Java }

what is the constructor and how many types of constructors are used in java?

1036

What is a local block?

1189

Which class is the superclass for all the classes?

1062

What is the use of static methods?

1093

Can we pass a primitive type by reference in java? How

977

What are the different types of inheritance in java?

1039

What is the difference between post and put?

1128

Which list is sorted in java?

1082

What are java annotations?

1222

What is isa relationship?

1105

What is difference between arraylist and list in java?

1129

What is the synchronized method modifier?

1275

What are the access modifiers available in java?

1175

What are the differences between throw and throws?

1104

Explain the significance of class loaders in bootstrap?

1011

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