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

Core Java Interview Questions

Questions Answers Views Company eMail

Can we define private and protected modifiers for the members in interfaces?

1124

What is the difference between static (class) method and instance method?

1096

What is this keyword in java?

1047

What is the output of the below java program?

1065

What do you understand by the bean persistent property?

1027

Can you use abstract and final both with a method?

1123

Can we make the abstract methods static in java?

1076

How is garbage collection controlled?

1187

What is the purpose of the strictfp keyword?

1175

What is gc()?

1081

How can constructor chaining be done using this keyword?

1 1298

What are the steps that are followed when two computers connect through tcp?

1007

What are the advantages of packages in java?

5 1651

What is the abstraction?

1031

List the features of java programming language.

1070

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Un-Answered Questions { Core Java }

Can you declare the main method as final?

1031

When do you call copy constructor?

993

What is a treeset in java?

1061

What is starvation?

1334

How do you classify Dialog Box?

1137

Explain wait() method of object class ?

1241

How do you sort arraylist in descending order?

1035

How do you convert string to int in java?

1091

What is the difference between serial and throughput garbage collector?

1118

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

1059

Why convert an applet to an application?

1116

Define max and min heap, also the search time of heap.

1038

Where is jre installed?

1056

What is the difference between overriding and overloading in OOPS.

1177

What is use of valueof () in java?

1069

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