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

Java J2EE (14736)
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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 2019

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

Huawei,

9 31945

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 13579

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

Infosys, TCS,

1 2416

"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 11914

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 8344

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 16781

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

SLK Group,

4 43765

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

TCS,

5 25809

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 13051

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

TCS,

2 8600

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

2 6638

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

1 16121

Un-Answered Questions { Java Related }

What is java string pool?

1076

What is the java api?

989

How to sort array in descending order in java?

986

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

1128

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

2659

What is a constructor overloading in java?

1121

What is the difference between filters and interceptors ?

1300

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

994

What is the locale class?

1022

How can you inject java collection in spring?

503

Are jvm’s platform independent?

978

What do you understand by casting in java language? What are the types of casting?

923

Can we return resultset in java?

988

What is lazy class?

480

Is minecraft 1.15 out?

1038

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