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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 57264

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 12176

why is multiple inheritance not allowed in java?

7 15733

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

5 9643

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 5450

write java code to print second max number in the array

12 23660

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 9619

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

4 7884

Program to find greatest prime number in n numbers?

3 15739

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

1 10572

question on Thread synchronization

3 10073

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

4 20960

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 7166

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 7408

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

9 31269

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Huawei Core Java Interview Questions

Huawei Core Java Interview Questions (20)

Un-Answered Questions

How to calculate beta for a specific company?

1075

What is transaction server auto commit?

1004

How to get single column from database using hibernate?

403

A fan is handling hot air at 285 degC with flow of 411635 m3/hr, power consumed is 1165kW and efficiency is 66%. what will happen to flow, power and efficiency of the fan if a water spray system is introduced to reduce the air temperature up to 200 degC? (also please refer any document regarding this)

1872

Can I turn off cortana?

803

What is the zooplankton?

330

How many types of files are there in unix?

954

How can I install windows 10?

774

What are the types of ioc container in spring?

393

What are the sap enhancements to enhance fir data?

891

How do you manage communication between different controllers?

288

Mention different types of joins?

468

What feature does the fill tab in data transform wizard provide?

Is json better than xml?

Write the chemical formula for epsom salts?

1039