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

Core Java Interview Questions

Questions Answers Views Company eMail

How to convert string to byte array and vice versa?

1097

What is string subsequence method?

1137

How can we make sure main() is the last thread to finish in java program?

1205

how to split string in java?

1225

What does string intern() method do?

1093

Difference between string, stringbuffer and stringbuilder?

1035

What is volatile keyword in java

1132

Explain differences between collection api and stream api?

1192

What are the three parts of a lambda expression? What is the type of lambda expression?

1040

Does string is thread-safe in java?

1097

What is java thread dump, how can we get java thread dump of a program?

1012

How to convert string to char and vice versa?

1009

Write a method to check if input string is palindrome?

1024

How can we make string upper case or lower case?

1085

How to compare two strings in java program?

1060

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Un-Answered Questions { Core Java }

What is difference between wait and notify in java?

1149

How will you invoke any external process in java?

1124

What means public static?

1055

What is length in java?

1023

can used Protected Class outside Function.?

1110

What is string in java is it a data type?

1026

What is a parameter in simple terms?

1006

What is method in java ?

1096

I am unable to find or learn about print command. I have a graphical program in core java in applet but i want to give print command but i have coding for that so if anyone know about this plz mail me on avdhesh_chauhan007@yahoo.co.in

2107

What is set in java?

1056

What are heap memory and stack memory and what are memory tables.

992

What is static class

1124

Can we override private constructor in java?

986

Write a factorial program using recursion in java?

1031

What is the exact difference in between unicast and multicast object? Where we will use?

1007

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