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 use of isempty in java?

1080

What is the flag in java?

1111

What are the different data types in java?

1052

How is string stored in java?

1119

How do you reverse a list?

1049

Is boolean a wrapper class in java?

1107

What data type is string java?

1006

Why main method is static in java?

1231

How many bits is a string in java?

1078

What is array size in java?

1020

What does 0 mean in boolean?

1022

What is boolean strategy?

1182

What is boolean query?

1037

Is a boolean 1 bit?

1122

What is boolean law?

1132

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Un-Answered Questions { Core Java }

How does multithreading take place on a computer with a single cpu?

1056

Differentiate between a constructor and a method? Can we mark constructors final?

1244

Explain the difference between abstract class and interface in java?

1044

How to sort numbers in java without array?

1041

What is the definition of tree ?

1126

What is volatile data type?

1069

What is default size of arraylist in java?

1224

What is collections framework?

1207

what is use of functional interface in java 8?

1096

Can an integer be null java?

1054

Explain about complier design(phases)

1137

What does main method?

1014

What is the same as procedures?

1037

What is tcp ip in java?

1158

What is r in java?

1108

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