Core Java Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java Interview Questions

Questions Answers Views Company eMail

Write code of any action class?

1029

What are the two basic ways in which classes that can be run as threads may be defined?

1090

When is an object subject to garbage collection?

1102

When is the finally clause of a try-catch-finally statement executed?

1089

What happens if a try-catch-finally statement does not have a catch clause to handle an exception that is thrown within the body of the try statement?

1132

Give us the name of the list layoutmanagers in java?

938

How are the elements of a gridbaglayout organized?

1075

Which package is always imported by default?

1109

What classes of exceptions may be thrown by a throw statement?

985

What happens when you invoke a thread’s interrupt method while it is sleeping or waiting?

996

What class allows you to read objects directly from a stream?

1335

What is the difference between the file and randomaccessfile classes?

1115

Why synchronization is important?

1040

How is it possible for two string objects with identical values not to be equal under the == operator?

1006

Why are the methods of the math class static?

1087

Post New Core Java Questions

Un-Answered Questions { Core Java }

Explain 5 io best practices?

1049

How to sort an unsorted array in java?

1144

What things should be kept in mind while creating your own exceptions in java?

1179

Explain about procedural programming language or structured programming language and its features?

1116

How to avoid memory leak in java?

1150

What is gc()?

1081

How do I run java on windows?

1194

How do you do descending order in java?

978

Which data type is class in java?

1027

How do you allocate memory to object?

1014

Hi i am creating desktop application in that i want calling to mobile number. i have java telephone api (JTAPI) but i dont understand how it configure & use plese help me

1866

Which is faster string or stringbuilder?

937

Can you pass functions in java?

1047

What is output buffer?

1065

What do you understand by abstract classes?

1089

For More Un-Answered { Core Java } Questions Click Here