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 a vector in java?

1042

What is methods in java?

1015

How do you use compareto in java?

981

What is string builder in java?

1030

What does compareto () do in java?

1011

Is string thread safe in java?

1103

What is an escape character in java?

1053

What are the string methods in java?

1108

What is printwriter in java?

971

What is string pool in java?

1036

How is string immutable in java?

1046

Is special character in java?

1110

What is r in java?

1066

What is the escape character in java?

1006

Does .length start 0 java?

1027

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Un-Answered Questions { Core Java }

What do you mean by stack?

1167

Is java an ide?

995

What is the purpose of using bufferedinputstream and bufferedoutputstream classes?

1083

How does hashset works in java?

1103

give an example for encapsulation?

1059

How to set the permissions to a file in java?

999

What is the purpose of assert keyword used in jdk1.4.x?

1075

What is an escape character in java?

1053

What is a condition in java?

1022

What is a hashmap used for?

1263

What is getclass () getname () in java?

1161

Does string isempty check for null?

1047

What is a method header?

1034

What is the difference between an if statement and a switch statement?

1174

How many JVMs can run on a single machine and what is the Just-In-Time(JIT) compiler?

1069

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