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

Core Java (6529)
Advanced Java (552)
Swing (223)
EJB (402)

Servlets (804)
Struts (701)
JDBC (771)
JMS (324)

SunOne (10)
J2EE (485)
Weblogic (694)
Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

What is the difference between Error, defect,fault, failure and mistake?

HCL,

1 1264

What are assertions in java?

Impetus,

1 2260

How are java objects passed to a method and what are native methods?

Genpact,

1 1135

What is scope & storage allocation of global and extern variables? Explain with an example

IBS,

1 1102

Explain with example the concept of constant variable in java.

HCL,

1 1276

what is the purpose of "virtual"?

EDS,

1 1140

What is the reason behind using constructors and destructors?

HCL,

1 1126

Detail discussions on JVM, memory management and garbage collector.

Expedia,

1 1050

How can we make a class virtual?

Fidelity,

1 1197

What are the basic concepts of OOPS in java?

Axtria, ITC Indian Tobacco Company,

1 1101

What is garbage collection? Can it be forced to run?

Global Logic,

1 1068

Give differences between Quicksort & Mergesort. When should these sorts be used and what is their running time?

Genpact,

1 1151

Write a function for palindrome and factorial and explain?

Honeywell, Huawei, Zomato,

1 1143

What is the use of a conditional inclusion statement in Java ?

Global Logic,

1 1151

Why main function is static?

MCN Solutions,

1 1338

Un-Answered Questions { Java J2EE }

What is a constructor overloading in java?

1113

i want test pattern of zylog company and some examples also

2841

Realized?

2239

What is action chaining ?

1148

What is latest hibernate version?

465

What is java string pool?

1068

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

2649

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

1047

What is the difference between filters and interceptors ?

1273

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

520

Differentiate between static and non-static methods in java.

1106

explain different ways of using thread? : Java thread

1068

What do you mean by an interface in java?

1084

How can you inject java collection in spring?

493

What is a classloader in java?

1072

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