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 main method?

1039

What is string variable?

1048

What does escaping a character mean?

1010

What is class and its types?

1033

What is a substring of a string?

1156

What is the use of static methods?

1037

What is parsing and its types?

1096

What is integer parseint?

987

What are the three parts of a lambda expression?

1002

Can we have this () and super () together?

1041

What is * argv?

1228

What is string immutability?

1102

What does the string method compareto () do?

1055

What is difference between array and vector?

1083

What is substring of a string?

1 2432

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Un-Answered Questions { Core Java }

Can we return null in java?

1143

What is meant by class?

995

Is null false in java?

1188

What is the size of arraylist in java?

1022

Why java is not 100% object-oriented?

1503

Mention some features of java?

959

How many types of voids are there?

978

What is java volatile?

1041

What is regex java?

1099

How to connect to a remote database using Applet?

2538

What is meant by oops concept in java?

988

Can I uninstall java?

1046

Give differences between Quicksort & Mergesort. When should these sorts be used and what is their running time?

1063

Write a program to search a number in the given list of numbers.

1028

Do you know how to reverse string in java?

1145

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