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

Core Java Interview Questions

Questions Answers Views Company eMail

Difference between a Scrollbar and a ScrollPane?

1 7365

What is the difference between a Window and a Frame?

Infosys, ProKarma,

6 25055

Explain break statement and continue statement?

3 13542

What are field variable and local variable?

3 15539

What is the difference between a public and a non-public class?

2 8056

Explain the difference between scrollbar and scrollpane?

1 12607

What is static and a non-static inner class?

3 7935

What is the difference between abstract class and interface?

Aspire,

3 6812

Tell me the difference between an applet and a Japplet?

1 4004

What is an array and a vector? How they different from each other?

4 8384

What is exception and error? and what is the difference between them?

2 6681

Explain difference between final, finally and finalize?

Cognizant,

3 29666

Explain the difference between getAppletInfo and getParameterInfo?

1 6907

What is the difference between panel and frame ?

HCL, IBM, Raim Techno Solutions,

7 76368

Explain the differences between public, private, protected and static?

4 31972

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Un-Answered Questions { Core Java }

What is an object in java and how is it created?

1110

Explain public static void main(string args[]) in java.

1053

What is a constructor overloading in java?

1114

What are the differences between heap and stack memory in java?

1113

What is parsing in java?

1022

Differentiate between static and non-static methods in java.

1106

Write a java program to find the route that connects between Red and Green Cells. General Rules for traversal 1. You can traverse from one cell to another vertically, horizontally or diagonally. 2. You cannot traverse through Black cells. 3. There should be only one Red and Green cell and at least one of each should be present. Otherwise the array is invalid. 4. You cannot revisit a cell that you have already traversed. 5. The maze need not be in the same as given in the above example

2650

How to create a base64 decoder in java8?

1119

What is the difference between equals() and == in java?

1022

Is minecraft 1.15 out?

1024

Write a program to find the whether a number is an Armstrong number or not?

1085

Realized?

2239

Write a program to print count of empty strings in java 8?

1071

What is the difference between break and continue statements?

1107

What is java string pool?

1068

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