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

Java J2EE (14736)
J2ME (151)
Java Related AllOther (507)

Java Related Interview Questions

Questions Answers Views Company eMail

In method overloading ,if i change the return type to Long instead of INT,is the program execute

HCL,

6 12081

wat is class level lock and object level lock

HCL, Persistent,

3 22415

is it possible to add a object in a HASHMAP

HCL,

6 10064

why we cannot declare static variable inside a static method

4 10032

why using interface interface ?

1 2129

why use interface? if interface declear a method implement in class. why direct implement method in class

HCL,

1 2924

different between exception and error? explaim check and uncheck exception

4 7640

What is the difference between stateful and stateless session beans?

Tech Mahindra,

2 8420

Difference between interface and abstract class with ex.

Cognizant, Tech Mahindra,

4 9849

what is Thread priority?

Tech Mahindra, Wipro,

4 8340

Distinguish method overloading and overriding

Tech Mahindra,

2 5878

Distinguish method overloading and method overriding

Tech Mahindra,

4 7652

What is thread priority?

Tech Mahindra,

1 5876

how to search the pertical objects in a Collections

iGate,

3 6453

iam writing the contents to a excel through I/O i am putting first statement as WRITE and then READ(from excel) immediately..later user complains that he is not getting the date by using READ ..wat could be the situation

iGate,

3 5783

Un-Answered Questions { Java Related }

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

1128

What is a constructor overloading in java?

1121

What do you mean by an interface in java?

1095

What is the first argument of the string array in main method?

1025

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

What is java string pool?

1076

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

1124

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

hi actully i hav form columns with origin and destination names .as like as i need to create one more column with name amount. my requirement is when i select origin and destination columns automatically i need to get amount from database.how can i. please tel me with relative code

2861

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

1095

What is action chaining ?

1158

what is reflection api? How are they implemented?

1100

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 if I write static public void instead of public static void?

928

What do you know about validation plugin ?

1024

For More Un-Answered { Java Related } Questions Click Here