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 many types of array are there?

1025

Is string is a data type?

961

What does regex mean?

1023

What is the difference between a method and a function in alice?

1216

What is the benefit of abstract class?

966

What is the full form of jpeg?

978

What is use of super keyword?

984

Why is a singleton bad?

965

What is the relationship between class and object?

1062

What is the benefit of singleton pattern?

999

What's a method in programming?

1099

What is the benefit of lambda expressions?

1086

Why are constructors used?

1041

Why do we declare a class static?

1182

When should I use singleton?

1053

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Un-Answered Questions { Core Java }

How to implement an arraylist in java?

1180

What is dynamic binding(late binding)?

1058

Explain purpose of sleep() method in java?

1138

How does indexof work?

981

What is the purpose of the main method?

1007

What is the purpose of the file class in java programming?

1042

If you are given the name of the function at run time how will you invoke the function?

1157

What are the different types of methodologies?

1022

What is increment in java?

982

What is the difference between stringbuffer and stringbuilder class?

1125

In Java list the methods that can be overridden?

1026

What is the purpose of the enableevents() method in java programming?

1207

What are the advantages of exception handling in java?

1075

What is the dot operator?

1024

What is anagram in java?

949

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