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Java J2EE Interview Questions
Questions Answers Views Company eMail

what is mean by hasing and maping in java platform and advantage?

CTS,

1 2472

whats the difference between == and .equal ?

Cisco,

10 16504

what is meant by package in java?

 5 11628

What is in Hibernate? How exactly inheritance of Object to Tables can be done? What is the benefits of discriminator?

AppLabs,

1 7616

class A { private int i; } class B extends A { private int i; } if I create an object of B class what will be the memory of that object.

Yamaha,

2 8693

how to fing linkedlist is circular or not?

TCS,

1 4107

what is the main class of all the classes

Photon,

5 8111

what are the boundaries of jdk and jre?

CoreObjects,

2138

How will you measure that int takes up only 32 bits in memory?

Rolta,

2 5915

Map map = new HashMap(2); map.add(“1”,”one”); map.add(“2”,”two”); map.add(“3”,”three”); What will happen at this line?

Rolta,

5 16279

Write down program for following scenario. Use java coding standard. You have array list with some words in it..we will call it as dictionary….and you have a arbitrary string containing some chars in it. You have to go through each word of dictionary and find out if that word can be constructed with the help of chars from arbitrary string given. If you find the word print it else print none.

Rolta,

1 2799

Can we iterate through collection using for loop?

Rolta,

2 6338

Why Set interface contains unique elements, what internally implemented for this so that it contains unique elements?

Rolta, TCS,

2 8233

What will be the output of the program? public class Test { public static void main(String args[]) { ArrayList list = new ArrayList(); list.add("2"); list.add("3"); list.add("4"); list.add("5"); System.out.println("size :"+list.size()); for(int i=0;i

Rolta,

5 8747

JVM is platform independent or depeneded?

 7 10074

Un-Answered Questions { Java J2EE }

Hi frnds how to lock an user when he enter wrong credentials more than 3 time using java or j2ee tech take username and password in a bean no need to connect DB and validate give me some sample application code or links its urgent for me thanks in advance

2415

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

1063

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

2257

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

994

How to sort array in descending order in java?

984

What do you mean by an interface in java?

1095

What is lazy class?

479

What is parsing in java?

1025

What is the difference between break and continue statements?

1117

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

1032

What do you know about validation plugin ?

1024

What is the difference between filters and interceptors ?

1293

i want test pattern of zylog company and some examples also

2855

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

533

How can you inject java collection in spring?

501

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