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 return null in java?

1019

Where is java located?

1114

What is treeset in java collection?

1008

What is map and hashmap in java?

1114

Is null in java?

1076

What is the arraylist in java?

1108

What is queue in java?

1214

Why do we need array in java?

1052

Why arraylist is not synchronized in java example?

1114

What is the use of arraylist in java?

1153

What is a arraylist in java?

1120

Which is better list or arraylist in java?

906

Why do we override tostring method in java?

1024

What is the default size of set in java?

1017

What is the maximum size of hashmap in java?

1054

Post New Core Java Questions

Un-Answered Questions { Core Java }

What is identifier with example?

1092

What is a values collection view ?

1145

Can a lock be acquired on a class in java programming?

1043

Can you start a thread twice in Java?

1171

What is variable explain with example?

1110

What will be the initial value of an object reference which is defined as an instance variable?

1194

What is not object oriented programming?

989

Why is the singleton pattern considered to be an anti pattern?

942

Can we clone singleton object in java?

1083

What does java ide mean?

1207

What are loops in java? What are three types of loops?

1072

What are features of java?

1081

What is the differences between c++ and java? Explain

1106

Can the interface be final?

1061

What is anagram in java?

974

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