C Interview Questions
Questions Answers Views Company eMail

Diff: between this 2 classes in terms of memory class A { int i; char c; double d; }; class A { double d; int i; char c; }; How it is calculating?

HCL,

1 3302

A float occupies 4 bytes in memory. How many bits are used to store exponent part? since we can have up to 38 number for exponent so 2 ki power 6 6, 6 bits will be used. If 6 bits are used why do not we have up to 64 numbers in exponent?

937

write a c program that prints all multiples of 3between 1 and 50.

4 16851




c program to print a name without using semicolon

Wipro, TCS,

9 7008

program that accepts amount in figures and print that in words

Infosys, Wipro, Lovely Professional University,

2 3625

Write a program using two-dimensional array that lists the odd numbers and even numbers separately in a 12 input values.

1 11677

write a programme to convert temperature from farenheit to celcius?

IBM,

4 5724

please explain every phase in the "SDLC" in the dotnet.

1362




If i have an array 0 to 99 i.e,(Size 100) I place the values 1 to 100 randomly like a[0]=29,a[1]=56 upto array[99].. the values are only between 1 to 100. getting the array values by using scanf.. If i entered one wrong element value line a[56]=108. how can i find it.. and also how to find the missing value in 1 to 100.. and i want to replace the missing values.. any one of them know please post your answer..

Wipro, IBM,

758

diff between exptected result and requirement?

HCL,

794

Between macros and functions,which is better to use and why?

775

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.

682

disply the following menu 1.Disply 2.Copy 3.Append; as per the menu do the file operations 4.Exit

738

print 1-50 with two loop & two print Statement

2 2637

what is the difference between %d and %*d in c languaga?

TCS,

6 8643


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Un-Answered Questions { C }

how is the examination pattern?

814


p*=(++q)++*--p when p=q=1 while(q<=6)

448


You are to write your own versions of strcpy() and strlen (). Call them mystrcpy() and mystrlen(). Write them first as code within main(), not as functions, then, convert them to functions. You will pass two arrays to the function in the case of mystrcpy(), the source and target array.

957


what is the difference between north western polytechnique university and your applied colleges?? please give ur answers for this. :)

1082


how can i write a program that prints out a box such that whenever i press any key8(coordinate number) on the keyboard, the box moves.

399






write a program to find the given number is prime or not

2242


can we change the default calling convention in c if yes than how.........?

1204


write an algorithm to display a square matrix.

1304


Hai what is the different types of versions and their differences

720


Write an algorithm for implementing insertion and deletion operations in a singly linked list using arrays ?

2097


why return type of main is not necessary in linux

888


what is diffrence between linear and binary search in array respect to operators?what kind of operator can be used in both seach methods?

690


how to print electricity bill according to following charges first 100 units -1rs per unit for next 200 units-1.50 rs per unit without using conditions

1889


please explain every phase in the "SDLC" in the dotnet.

1362


write a program to input 10 strings and compare without using strcmp() function. If the character of one string matches with the characters of another string , sort them and make it a single string ??? example:- str1="Aakash" st2="Himanshu" str="Uday" output:- Aakashimanshuday (please post the answer as quickly as possible)

759