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 happens when you add a double value to a string?

1056

What modifiers may be used with a top-level class?

1107

What is the arguement of main method?

1 1736

Can a class extend more than one class?

1162

How is final different from finally and finalize?

980

How many bits are used to represent unicode, ascii, utf-16, and utf-8 characters?

1148

What are the legal operands of the instanceof operator?

1078

When will you define a method as static?

1137

Can a class be defined inside an interface?

1074

does java support pointers?

1044

Should a main method be compulsorily declared in all java classes?

1127

Why isn’t there operator overloading?

1139

What is the importance of static variable?

1162

Are arrays primitive data types?

1255

What is a local, member and a class variable?

1088

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Un-Answered Questions { Core Java }

Can java cast null?

1076

How can we make a class virtual?

1178

How do listeners work?

1098

can used Protected Class outside Function.?

1150

What is javac_g?

1064

Can we create an object of static class in java?

1052

What is a char in java?

1091

What are the default and parameterized constructors?

1101

What is the purpose of return statement?

1122

What are the different access modifiers available in java?

1071

what is the difference between thread and runnable types? : Java thread

1048

What is complexity and its types?

1095

What are 4 pillers of object orinted programming?

1074

What is method in java ?

1137

Differentiate between stringbuffer and stringbuilder in java.

1075

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