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HCL Interview Questions
Questions Answers Views Company eMail

Tell me about yourself?

229 489617

why you used Java Script? Can it use for both client side and server side validation purpose?

12 29938

what are Implode and Explode functions?

8 29060

What is Win32?

14 35122

How to access or modify the const variable in c ?

16 36538

Difference between Top down and bottom up approaches for a given project ?

14 105218

What is difference between initialization and assignment?

12 59719

What is virtual constructor paradigm?

5 13645

when can we use virtual destructor?

7 24444

What is Difference between thread and process?

28 258912

What is the abbreviation of SMILE

12 30491

what sort of things what u put in Bug Report ?

5 12206

Will you write a test plan in all phases?

11 23966

In Dialog program Syntax of Synchronous and Asynchronous?

2 8676

Domain-use?

4 10181

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HCL Interview Questions


Un-Answered Questions

What is scope in c++ with example?

628


What is gridview c#?

499


Do you use separate seo strategies for google,yahoo and bing?

447


situation where others disagreed with your ideas.

696


Hi, in Vendor Master i put in defualt data material in purchasing group in sap. now i want to report or list only purchasing group wise vendor only like subcontractor vendor list only how to get this?

1545






What is the difference between html5 and html?

494


How do rails implement ajax?

502


Which function would you use to read a line of data from a file in php?

559


Classify the Company According to Incorporation?

661


How do I open .m files?

1


What is the use of flash chamber in a vapour compression refrigeration cycle to improve the cop of refrigeration cycle ?

674


How to Calibrate Radar Level Transmitter in Field

733


What is the major difference between quenching and annealing?

513


I need help with the following lab. Can anyone explain it to me on how to approach this problem. Coding would be great too !!! No busy waiting allowed. Remember that Java monitors are 'signal and continue'. The input data is called the database (DB). In this problem, it consists of a single variable initialized in the main thread, to contain the current time of day in HH:MM:SS:mmm format (mmm is milliseconds) truncated to 3 digits. Threads follow these rules: 1. Readers may all attempt to read at the same time, but NOT if a writer is writing (i.e.; the writer is in the monitor. 2. Writing is exclusive (only 1 writer at a time, no readers while writing). 3. Options: (to be specified by instructor) a. Readers have absolute priority over writers. b. Writers have absolute priority over readers c. When a reader arrives and a writer is waiting, the reader is suspended behind the writer instead of being admitted immediately. Thus, a writer waits for readers that were running when it arrived, but does not to wait for new readers. You may program this in C++ or Java. There are 4 controlling input values: 1. r – number of readers 2. w – number of writers 3. R – delay for a reader to restart 4. W – delay for a writer to restart Create the following program consisting of 1 main process (your main program) with n threads: 1. The main thread: a. Creates the 'n' threads needed. Of these, r of them are readers and w of them are writers. Starts all readers and writers. b. Waits for all 'n' threads to complete. You may use any method to detect when they are all complete. c. Prints out the resulting outputs from the threads. 2. Threads: a. When a thread starts to run, it immediately tries to enter the monitor. b. A reader thread reads the DB, outputs the exact message below, then exits: >>> DB value read =: HH:MM:SS:mmm by reader number: rr where the underlined text is replaced with actual data. c. A writer thread updates the DB with a new value (from the system time), outputs the exact message below, then exits: *** DB value set to: HH:MM:SS:mmm by writer number: ww where the underlined text is replaced with actual data. d. Each thread accesses the data a total of 10 times, exiting, then re-entering the monitor after each access. Hints: 1. File access *might* not be thread-safe, so you should be prepared to handle this. Read the documentation for the language you are using. 2. Suggested values for delays are: a. If looping, R >=1,000,000 and W>=100,000 b. If using “sleep”, then R=100 ms, W=50 ms. Additional: • Thread output is to ONE file used by ALL threads (so you need to synchronize access to it). • Readers must provide sufficient delay that results are useful (delay by R before re-trying). R is another input value. • Writers must also delay. Delay by W, updating the DB each time. W is an input. • Test your program with AT LEAST TWO different sets of values for r and w (#s of readers and writers) plus this set: r = 4, w=2. Basic operation of a thread: attempt to enter the monitor. If unsuccessful, you get put on a queue. When you get in, read or write the data (depending on type of thread), exit the monitor, wait the required delay amount, then try again. Repeat 10 times.

1510


What are the newly introduced text related features in css3?

272