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,

1965

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

Huawei,

9 31627

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 13328

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

Infosys, TCS,

2351

"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 10993

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 11816

what is diffrence between .NET and java?

2 5199

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

Oracle, Surya Software,

3 8156

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 16670

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

SLK Group,

4 43573

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

TCS,

5 25587

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 12868

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

TCS,

2 8466

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

2 6529

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

1 16006

Un-Answered Questions { Java Related }

What is a java applet?

971

How do you generate random numbers in java?

1025

How to sort numbers in java without array?

1014

Define cascade and inverse option in one-many mapping?

471

What are the disadvantages of using inner classes?

1214

What is the difference between hashset and treeset in java?

1082

How do you clear an arraylist in java?

997

Why won’t the jvm terminate when I close all the application windows?

1270

What is mean by jms?

936

What does executeupdate return in jdbc?

991

Who is java developer?

925

What is a managed node?

900

Which method of the httpservletrequest object is used?

1108

What is the difference between @autowired and @bean?

466

What do you mean by collectors in java 8?

956

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