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

We are seeing so many videos/audios as many web sited. But question is these videos or audios are stored in Databases ( Oracle, Mysql, Sybase,... ) or stored any file directory from there they will give the link for that? Pls explain and give sample code to achieve this one? Thanks, Seenu.

Symphony,

1 2021

JSP is by default thread safe or not? what is the meaning of isThreadSafe="true" and isThreadSafe="false". Explain it? Thanks, Seenu

Huawei,

9 31947

Write program to print Hello World and print each character address in that string and print how many times each character is in that string? Ex: H: 0 & 1 e:1 & 1 l :2,3,8 & 3 o:4,6 & 2 w:5 & 1 r: 7 & 1 d 9 & 1

Huawei, IBM,

7 13594

how to know the total memory occupied by the objects in the ArrayList(Array list may contain duplicate objects)

Infosys, TCS,

1 2419

"We cannot create an object of interface but we can create a variable of it". Discuss the statement with the help of an example. (Plz help us to provide immediately.)

3 11149

Create a form of user Login in JSP, that accepts the user name and password from user and authenticate it with user names and passwords stored in database. (Plz provide me answer immediately)

ABC,

1 11916

what is diffrence between .NET and java?

2 5297

Read data from console and print in one file. That would be in C:\temp ? Thanks, Bose

Oracle, Surya Software,

3 8348

I have one POJO class(Java bean class), it has two variables for that it has setters and getters. Now i have created two objects for that class and i have set the data for those variables through this two objects. Now question is i want check whether those two objects have same data or not, for this write a program? Thanks, Bose.

Oracle,

2 16784

what is real-time example of runtime polymorphism and compile time polymorphism

SLK Group,

4 43772

what is the control flow in servlet when we send a request?

TCS,

5 25818

I have include a jsp page by using The thing is that the xyz.jsp page has its submit button.When i click on that button the whole main page get refreshed.But i want to refresh only the xyz.jsp page.How could i achive it so that i can only refresh the xyz.jsp not the main page page?

4 13062

Write the program numbers into words.For example 2345==two thousand three hundred fourty five

TCS,

2 8604

Sample code to retrieve objects from HashMap in sorted ascending order?

2 6639

Hi Friends, can u give code to convert ArrayList to HashMap and HashMap to ArrayList.

1 16122

Un-Answered Questions { Java Related }

What is action chaining ?

1161

What is latest hibernate version?

486

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

930

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

2417

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

1095

Can we extract main method from another class?

1029

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

1133

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

1026

What is the difference between filters and interceptors ?

1305

What is the locale class?

1024

What is a constructor overloading in java?

1123

Can we return resultset in java?

990

What is java string pool?

1077

What is lazy class?

484

How does java handle integer overflows and underflows?

1111

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