Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Java J2EE Interview Questions

Questions Answers Views Company eMail

How substring() method of string class create memory leaks?

1 1106

Do you think that java should have had pointers?

1 1130

Why is string immutable in java?

1 1152

Can constructors be synchronized in java?

1 1184

What is a class loader? What are the different class loaders used by jvm?

1 1170

What are various types of class loaders used by jvm?

1 1059

Is jvm a overhead?

1 1173

What is the difference between long.class and long.type?

1 1184

What is the difference between system.out ,system.err and system.in?

1 1173

What is a class loader?

6 2126

Explain the different types of memory used by jvm?

1 1211

Which are the different segments of memory?

1 1158

Difference between new operator and class.forname().newinstance()?

1 1186

What is metaspace?

1 1103

What are the design considerations while making a choice between using interface and abstract class?

1 1152

Un-Answered Questions { Java J2EE }

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117

How to sort array in descending order in java?

976

What is action chaining ?

1149

what are the different modes of archival? Explain each mode in two lines each?

983

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

1110

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

2651

What is latest hibernate version?

465

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

1053

What are the contents on web.xml in struts application ?

1047

Hi frnd can i any one kindly can post for me portlet,hibernate and spring example application and with flow explantion configuration using Jdeveloper.and related links ar tutorials kindly please send me .its urgent for me .thanks in advance...........else can any one send to kondaiah.goddeti@gmail.com

2244

What is lazy class?

471

What is difference between @controller and @restcontroller in spring?

520

How to create a base64 decoder in java8?

1119

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

1071

What do you know about validation plugin ?

1009

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