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 program compilation process?

1132

Why java applets are more useful for intranets as compared to internet?

1088

Explain the init method?

1001

What does it mean that a class or member is final?

1008

What do you understand by final value?

1073

How can a gui component handle its own events?

1120

What is the statements?

1095

What is the difference between logical data independence and physical data independence?

1046

Why call by value prevents parameter value change?

1082

How can you set the applet size?

1066

What are keyboard events?

1166

What is hotjava?

1016

Wha is the output from system.out.println(“hello”+null); ?

1158

What is the purpose of skeleton and stub?

1261

What methods are used to get and set the text label displayed by a button object?

1031

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Un-Answered Questions { Core Java }

What is module with example?

1027

What is meant by singleton class?

1044

What are the differences between stringbuffer and stringbuilder?

1075

Which method returns the length of a string?

1050

What does it mean to flush a file?

1077

What is a Presistent Object?

1252

What is the difference between the jdk 1.02 event model and the event-delegation model introduced with jdk 1.1?

1141

Why is the type for real numbers called double?

970

What are the differences between c++ and java?

1151

When should I use singleton?

1050

What are the three best choices for a development environment?

1131

What is a buffer in computer?

1014

What does replaceall do in java?

926

Is math an abstract class in java?

1025

What are exception handling keywords in java?

1048

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