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 access scope of a protected method?

1076

Can an interface be defined inside a class?

1104

Is java a pure object oriented language?

1009

Can a class be declared as protected?

1055

What is collection api?

1104

Does the order of public and static declaration matter in main method?

1111

Can you create an object of an abstract class?

1072

How many static init can you have?

1265

What does it mean that a method or field is “static”?

1022

Can a source file contain more than one class declaration?

1050

Can you give few examples of final classes defined in java api?

1049

What restrictions are placed on method overloading?

1230

Can a abstract class be defined without any abstract methods?

1055

What is the diffrence between inner class and nested class?

1134

Can a main method be declared final?

1098

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Un-Answered Questions { Core Java }

What is oops in java?

1065

Which variable is the independent variable?

1026

What is java util concurrentmodificationexception?

955

Explain the importance of finally over return statement?

1110

Why string is not a wrapper class?

1226

Do we have pointers in java?

1066

Is jdk required on each machine to run a java program?

1356

What is the use of flag?

1135

What is the use of a conditional inclusion statement in Java ?

1132

What is string pool in java?

1070

What is the purpose of object oriented programming?

1030

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

1100

Why do we create threads in java?

1339

What modifiers may be used with an inner class that is a member of an outer class in java programming?

1167

What's the default access specifier for variables and methods of a class?

1164

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