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Core Java Interview Questions
Questions Answers Views Company eMail

How do you check if an arraylist is not empty?

1128

Does a function need a return?

975

Is empty in java?

1064

Do loops java?

1028

What is a nullable field?

1045

What is a nonetype?

1133

What is command line used for?

1098

Is empty string in java?

1189

Can arraylist contain null values?

1025

Can long be null in java?

1028

What is null object in java?

1019

What is empty string literal in java?

1064

What is reverse function?

1145

What is empty list in java?

1084

Is an empty arraylist null?

1106


Post New Core Java Questions

Un-Answered Questions { Core Java }

Can we write a class without main method in java?

969


Can I override protected method in java?

1083


What is a dynamic array in java?

1187


What is a return in java?

1034


Explain about map interface in java?

1000


What is the difference between stored procedure & function?

979


Explain about java sdk?

1045


Is it possible to compare various strings with the help of == operator? What are the risks involved?

1077


Can we overload final method in java?

995


How do you check if a number is a perfect square?

995


What does the “static” keyword mean? Can you override private or static method in java?

1103


Explain notifyall() method of object class ?

1093


What are the changes in java.io in java 8 ?

1043


What is the difference between an inner class and a sub-class?

1027


What is the intersection and union methods?

1033