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

Core Java Interview Questions

Questions Answers Views Company eMail

Which keyword specify that a variable is effectively final ?

937

Which access specifier can be used with class ?

951

How can we run a java program without making any object?

989

What will happen if there is a default method conflict as mentioned above and we have specified the same signature method in the base class instead of overriding in the existing class ?

906

Explain about anonymous inner classes ?

1023

What one should take care of, while serializing the object?

859

When do you get classcastexception?

986

Explain method local inner classes ?

984

Difference between object instantiation and construction ?

1014

Difference between this() and super() ?

1029

What are different ways of object creation in java ?

1026

How can we create objects if we make the constructor private ?

955

What is a final class ?

1094

Explain inner classes ?

1080

Can static method access instance variables ?

1077

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Un-Answered Questions { Core Java }

What is api in java?

939

What is an iterator interface in java programming?

912

How do you convert an int to a string in java?

1068

Can we override protected method in java?

1002

What are the access modifiers in java?

993

How can we run a java program without making any object?

989

What are the 6 boolean operators?

1031

Is java written in c?

916

What are the types of inner classes (non-static nested class) used in java?

1019

Differentiate between stringbuffer and stringbuilder in java.

984

What is passing by reference in java?

971

What is use of inner class in java?

1050

What is the purpose of skeleton and stub?

1154

What is collection sort in java?

908

Write down program for following scenario. Use java coding standard. You have array list with some words in it..we will call it as dictionary….and you have a arbitrary string containing some chars in it. You have to go through each word of dictionary and find out if that word can be constructed with the help of chars from arbitrary string given. If you find the word print it else print none.

2681

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