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 do you add an element to a set in java?

1077

Who found java?

1021

How do I compare two strings in word in java?

1039

What is keyset in java?

1120

How is treeset implemented in java?

1083

How to sort numbers in java without array?

1035

How to sort array in descending order in java?

959

How is hashset defined in java?

1084

How list contains works in java?

1046

What is a linkedhashmap java?

1054

What is entry in java?

1075

Is java jre still free?

1003

How to check if a list is sorted in java?

1085

Does list maintain insertion order java?

963

Is map sorted in java?

1108

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Un-Answered Questions { Core Java }

explain what is transient variable in java?

1188

What is ellipsis in java?

1131

How does singleton class work?

1033

what is mena by object block any what is the use of that

2259

What is meant by call by reference?

1085

What is import java util arraylist?

1238

In a class implementing an interface, can we change the value of any variable defined in the interface?

1138

These static constructors are correct ? class A { statc intA() { } static A(int x,int y) { } static A(int x) { } }

1131

Difference between serialization and deserialization in java?

1201

Where are the local variables stored?

1119

Is arraylist an object in java?

1223

Discuss about garbage collector in Java.

1124

Can a final variable be initialized in constructor?

1014

what is deadlock? : Java thread

1057

What is polymorphism and what are the types of it?

1037

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