How to scan and print a sentence in c

While printf can print multiple strings at a time puts can only print one string at a time. This program first takes a string as input from user using scanf function and stores it in a character array inputString. It automatically adds a null terminating character at the end of input string. Then it uses printf function to print inputString on screen. This program first takes a string as input from user using gets function and stores it in a character array inputString.

The advantage of using gets function is that, it can read string containing white cpace characters but gets can only read one string at a time. Then it uses puts function to print inputString on screen. Toggle navigation Home. C Program to Read and Print String.

Write a C program to read a string and print string on screen Write a C program for input and output of string. Points to Remember Length of the input string should not be more than character array used for storing string.

C doesn't perform any array index bound checking, hence it may overwrite something important. However we can use gets to read multi-word string. Points to Remember printf can print multiple string at a time, whereas puts can only print one string at a time.

After printing string puts places the cursor on next line, whereas printf doesn't move cursor to next line. Newer Post Older Post Home. C program to find length of string. C program to reverse a string. C program to swap two strings. C program to copy a string.I hope there are still people here, but can I loop the array so that the program ask for multiple strings? Very useful blog thanks for sharing IndPac India the German technology Packaging and sealing machines in India is the leading manufacturer and exporter of Packing Machines in India.

Post a Comment. Write a scanf function in c which accept sentence from user. Write a scanf function in c programming language which accept sentence from user. Sample output:. Enter any sentence which can include spaces.

To exit press enter key. May I help you? You had entered:. Write a c program to convert decimal number to hexadecimal number. Write a c program to convert decimal number to octal number. Write a c program to convert octal number to decimal number. Write a c program to convert octal number to hexadecimal number.

Write a c program to convert hexadecimal number to decimal number. Write a c program to convert hexadecimal number to octal number. Write a c program to convert binary number to decimal number. Write a c program to convert binary number to hexadecimal number. Write a c program to convert binary number to octal number.

how to scan and print a sentence in c

Write a c program to convert decimal number to binary number. Write a c program to convert hexadecimal number to binary number.

Write a c program to convert octal number to binary number. Write a c program to convert farehnite to centigrade. Write a c program to convert centigrade to fahrenheit. Big list of c program examples. Email This BlogThis! Newer Post Older Post Home. Subscribe to: Post Comments Atom.For a general-purpose text input function in the C programming language, one that reads beyond the first white space character, try the fgets function.

Frightening, no? Because the operating system considers standard input like a file, you can use fgets to read text from the keyboard.

In this example, string is the name of a char array, a string variable; size is the amount of text to input plus onewhich should be the same size as the char array; and stdin is the name of the standard input device, as defined in the stdio.

Compile and run.

Basic Input/Output

The fgets function in Line 8 reads in text. The text goes into the name array, which is set to a maximum of ten characters in Line 5. The number 10 specifies that fgets reads in only nine characters, one less than the number specified. Its size must equal the size of input you need — plus one. Only the first nine characters of the text typed in the first line are displayed.

Why only nine?

how to scan and print a sentence in c

The room for this character is defined when the name array is created in Line 5. If fgets were to read in ten characters instead of nine, the array would overflow, and the program could malfunction. Exercise 2 : Change the array size in the source code from The fgets Function Reads a String to a constant value. Set the constant to allow only three characters input. The fgets function reads text from standard input, not from the keyboard directly.

Dan Gookin wrote the original For Dummies book in Now, with more than 11 million copies in print, his many books have been translated into 32 languages. Visit him at wambooli.This section will present a short introduction to some of the most useful. There is no need to know details about the media associated to the stream or any of its internal specifications. The standard library defines a handful of stream objects that can be used to access what are considered the standard sources and destinations of characters by the environment where the program runs: stream description cin standard input stream cout standard output stream cerr standard error output stream clog standard logging output stream We are going to see in more detail only cout and cin the standard output and input streams ; cerr and clog are also output streams, so they essentially work like coutwith the only difference being that they identify streams for specific purposes: error messages and logging; which, in many cases, in most environment setups, they actually do the exact same thing: they print on screen, although they can also be individually redirected.

Homer Simpson Hello Homer Simpson. What is your favorite team? The Isotopes I like The Isotopes too! Please enter an integer value: The value you entered is and its double is What's your name? Previous: Operators. Next: Statements and flow control.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The dark mode beta is finally here.

Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. How to scanf full sentence in C without using fgets or gets. I want to scan a command line from the user and based on the first word recognize the command. For example: mkdir. To begin with, you're missing one close parentheses.

But assuming that this was a typo in posting the question and not in your actual code, there is a deeper issue. When sizeof is applied to the string literal, you're going to get the number of characters in the string, including terminating NUL. So you are only allocating space for three characters in ch. When you try to scanf the input, you're writing past the end of your three-character buffer ch.

Leave out sizeof and simply say:. Your first scanf will stop at the newline, which will remain in the buffer. Subsequent scanf calls in your while loop will encounter that newline character and dutifully stop, as it's excluded from your scan set. So the loop condition. Consume the newline after the scanf to avoid this problem:. Here, [] is the scanset character. Learn more.

Write a Program to Print Next to Last Word of a Sentence

How to scanf full sentence in C Ask Question. Asked 6 years, 7 months ago. Active 1 year, 3 months ago. Viewed 37k times. How to scanf full sentence in C without using fgets or gets I want to scan a command line from the user and based on the first word recognize the command. Dkova Dkova 4 4 gold badges 11 11 silver badges 24 24 bronze badges. Why don't you want to use fgets? Using it to read a full line then sscanf to later parse the line sounds much easier.

Active Oldest Votes. So the loop condition while strcmp ch, "exit" will never become true, and you'll get an infinite loop. Suggest fgetc. Yet this answer well deals with OP's primary issue. Humayun Kabbya Humayun Kabbya 11 1 1 bronze badge. Hiya, this may well solve the problemForum Beginners How to capture a full sentence? Pages: 1 2. Aug 29, at pm UTC. How do I get my program to recognize multiple words including the space? Any help is appreciated. Line 12 is a memory corruption.

Aug 30, at am UTC. I tried that jsmith its not letting me input anything. Chewbob, you're trying to delete a memory address?

how to scan and print a sentence in c

I recommend deleting the pointer or using a hammer. Hunter, jsmiths code should work. Try adding a cin. Alright, I tested it again and its not getting anything. Last edited on Aug 30, at am UTC. To get it to recognize full sentence, use cin. Hey warrior, i get an error saying cin. Oh right right, I forgot it's not cin. You just have to add something to make the program stop and not exit out after it shows the input.

I use cin. Okay, that works, but I put it into my if statement and its not getting it.

how to scan and print a sentence in c

Hold on, I'll make one and see if it works then compare it to yours. Mine got my input. This is weird. I just copied your code over mine in the actual program and its still not getting it. It goes straight to saying I just typed. What I'm going to do is try putting it all into a switch. Maybe something is wrong with the ifs. I don't understand, hunter. What is your exact problem using getline?

And cin will not work because it stops reading after a space is found.To scan or get any string from user, you can use either scanf or gets function. Let's take a look at both the function one by one. Following C program ask to the user to enter a string like your first name, then it will display your first name after Hello, :.

As the above program is written under Code::Blocks IDE, therefore here is the output you will see on your screen after successfully build and run.

This is the first snapshot of the sample run:.

Table of Content

Supply your name say codes as input and press ENTER to see the output as given in the second snapshot here:. As you can see from the above sample run, we have provided a string without space, but what if you want to provide a string with space, that have many number of characters. Before solving the problem, let's understand with the program given below, that how reading the string from user with the help of scanf function has a limitation of not getting longer string or sentence that has spaces.

Here is the program:. After successfully build and run the above program, here is the sample run you will get. This is the first screenshot:. Now enter any string say we love codescracker and press enter, here is the sample output you will see:. As you can see from the above screenshot of sample run, scanf function only scans the first word, and all the words comes after space gets skipped by this function.

Therefore to solve this problem, we have to use gets and puts function to get the string or sentence from user and put or print it back on the output screen. Here is modified version of the above program that takes the whole line as input. Let's take a look at it:. Now provide the same input as provided in the above sample run, that is we love codescracker and press enter.

This time you will watch the whole string as output. Here is the second screenshot of the sample run:. Tools Calculator. C Program to Read and Print String. All Rights Reserved.


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