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

Core Java Interview Questions

Questions Answers Views Company eMail

What are the traverses in Binary Tree?

Adobe, Infosys,

2 7367

Name the types of mouse event listeners ?

2 7161

In what ways you can handle exception ?

3 7557

transaction attributes ?

2 4918

What are types of Java applications?

14 52596

types of applets?.

TCS,

7 45909

What are virtual functions?

2 9861

What are wrapped classes?

Samsung,

7 15973

What is the top class of AWT event hierarchy?

5 14071

What class is used to create Server side object?

TCS,

1 4275

Java run-time system generates What class of exceptions?

TCS,

2 4963

What classes of exceptions, caught by a catch clause?

1 5158

What are wrapper classes?

Noah Solutions,

11 25329

What classes of exceptions, thrown by a throw statement?

2 8583

garbate collector(GC)?

4 7859

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Un-Answered Questions { Core Java }

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

1120

Differentiate between static and non-static methods in java.

1111

Realized?

2248

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

1028

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

1121

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

1077

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

2657

What is parsing in java?

1022

explain different ways of using thread? : Java thread

1072

What do you mean by an interface in java?

1091

Is minecraft 1.15 out?

1032

How to create a base64 decoder in java8?

1122

How to sort array in descending order in java?

980

What is a classloader in java?

1080

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

1061

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