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 does JAVA ClassLoader work?

IBM,

1 4413

What is java class writing rules?

Oracle,

1 3249

What are possible key words, we can use to declare a class?

Tech Mahindra,

2 3994

How many types of modifiers are there?

Infosys,

1 3318

What are access modifiers?

Infosys,

1 3301

What are non-access modifiers?

Cognizant,

2 3810

How does access modifiers work?

Wipro,

1 2965

How does static modifier work?

Wipro,

1 3260

How does abstract modifier work?

Wipro,

1 2922

How does synchronized modifier work?

IBM,

1 2972

How does final modifier work?

Tech Mahindra,

1 3455

What are legal modifiers that we can use to declare an inner class?

Infosys,

1 3374

What is difference between “==” and equals()?

IBM,

1 3045

Why do we need to override equals() and hascode() method of object class?

Cognizant,

1 3569

How to override equals() and hashCode() method in java?

Wipro,

1 3210

Post New Core Java Questions

Un-Answered Questions { Core Java }

Can a constructor have different name than a class name in java?

1185

What technique can be employed to compare two strings?

1097

What is fail fast in java?

1158

What is the right data type to represent a price in java?

952

what is optional in java 8?

1054

What are static methods?

1046

Which is a valid identifier?

1200

How do you check whether the list is empty or not in java?

976

What do you understand by overloading and overriding in java?

1074

Does java have extension methods?

974

What are the main uses of this keyword?

1053

What is the difference between inner class and nested class?

1083

Describe 2 different ways to concatenate two strings.

1196

Why does it take so much time to access an applet having swing components the first time?

1922

Can we extend singleton class in java?

959

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