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

Topic :: Java

Java Interview Questions

Questions Answers Views Company eMail

project architechture in java

AC, IBM, INDUS, Satyam,

3 13477

how to create thread in java?

IBM, Infosys, Wipro,

17 24658

Java add-in is need to work on java oriented project ?

3 7468

How can we test whether Java & .net was installed in our PC or not?

Approva,

2152

Can the primary key in the entity bean be a Java primitive type such as int?

CTS,

2 9009

What type of error u will get if u have not installed java add in in java project? what is the error name ?

Verizon,

1 6053

What is difference between JVM (Java Virtual Machine) and CLR (Common language Runtime) ?

AZTEC, Impetus, Symantec, Veritas,

7 22512

What is Marker interface in java? and what is clone?

Persistent, Wipro,

16 37150

I am automating a Java application. This application is developed using SWT. I am not able to get the GUI object. Even i tried with Java add-in. In tutorial it states SWT is not supported any idea. Anybody worked in such appln. My question is whether it is possible to record the GUI object of SWT appln. how it is possible.

1 5849

In the first round, there are 30 aptitude and 30 java questions. We are suppose to finish both the papers within 60 minutes. I cleared this round. Next was test for programming skills. In this section, Some 7 n's were asked. 1. What is the difference b/w sleep(1000) and wait(1000) 2. what is the diff b/w static block and static function? 3. Write a program to validate IP address using string tokenizer. 4. Write a program to create singleton class 5. write a function to reverse the string 6. Write a prog to print prime nos upto n. EX: If n=9, It shld print 1,2,3,5,7 7. One program on collections- Write a program to print no. of times a number is repeating in an array. EX- {1,3,1,2,5,7,3,7,34,3,8,3} It should print: 1- 2 times 3- 4 times and so on 7. Write a func to print fibonocci series After this I had technical interview, which went on for. 60 mins or so. There were qn's about multi threading, Exception handling and collection classes. Knowledge about collections was very important for the post I was interviewed for.

Huawei,

1 12326

WHERE WE USED JAVA CONCEPTS IN ACTUATE?

1 5724

what is java

10 11837

IF application is a Java-based application means 2 0r 3 tier application. How the script will be in QTP. pls kindly give some sample script.

Wipro,

5 14761

wht type of User defined functions or Java Releated functions do we write in VB scripting

Wipro,

2296

What are common transport Errors? What java tools to install java patches? What SAP tools you use to install SAP patches?

3 13387