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Huawei Core Java Interview Questions
Questions Answers Views Company eMail

what is the difference between static block and static method

19 46579

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.

1 10421

why is multiple inheritance not allowed in java?

7 11598

hi to all. well can you please tell me that why String class is immutable? Thanks in advance.

5 6708

perpare on factorypattern,linklist wothout using collection, (multitharding ie create producer/customer therad producer create Queue continuesly,consumer consume queue, consumer wait if queue is full,producer wait if queue is empty),diff betn sleep(1000)&wait(1000) these r the main Q ask in huawei(2008)

1 4099

write java code to print second max number in the array

12 17222

Write java code to print "Hello how are you" Thread1 should have "Hello" Thread2 should have "how are you" both the threads should start at the same time

4 7180

Program to output as below formate: 1 2 3 4 5 6 7 8 9 10

4 5563

Program to find greatest prime number in n numbers?

3 13397

program to validate the IP address? Validity range should be 0 to 255

1 9102

question on Thread synchronization

3 7978

diff b/w sleep(1000) and wait(1000)?

4 17411

I have an HashMap object, which has with key and value pair. It has 10 keys and values in that object. Now the question is I want insert new key and value in middle or any where in that list but not at the end or at the top. Is it possible or not. If yes how can we achieve this one?

2 5398

How can we handle runtime exceptions? write one sample program? Can we write runtime exceptions beside the throws key word? if yes write sample program?

1 6102

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

9 26387

Post New Huawei Core Java Interview Questions

Un-Answered Questions

What is sgml and xml?


At os level how you can change the number of work process? How you can analyze the status of work process at os level?




define what a data area is along with a brief example of what it may be used for?


Explain asset acquisition? : fi- asset accounting


What is a node js callback?


What is the purpose of 'account determination'?


In earth work 1300 cum soil how to calculate how many liters require in water


why we write function's implementation in .h file while developing the Web application through VC++?


What are the things that one should consider for selecting a project for test automation? For example, stability, etc.


How to access a variable of the first host in a group?


How can you default certain items while creation of internal order master data?


What are the types of sockets?


Name the different modes of recording?


How to modify object property in qtp ?