How do I get input without scanf?

3 Answers. There aren’t functions to read integers and floats but you can use fgets with strtol for integers and strtof for floats: // floats: char str_f[20]; float f; fgets (str_f, 20, stdin); f = strtof(str_f, NULL); // integers: char str_i[20]; int i; fgets(str_i, 20, stdin); i = strtol(str_i, NULL, 0);

What can I use instead of scanf?

There is no alternative for the scanf() in C language but there are some functions which can replace some of its functionality. They are gets() and getch(). But please note that the scanf() can read a wide range of values of different data types.

What we use in C++ instead of scanf?

With synchronization turned off, the above results indicate that cin is 8-10\% faster than scanf(). This is probably because scanf() interprets the format arguments at runtime and makes use of variable number of arguments, whereas cin does this at compile time.

Can you Scanf a string in C?

We can take string input in C using scanf(“\%s”, str). But, it accepts string only until it finds the first space.

How do I input an array in one line?

“take integer array input in java in one line” Code Answer’s

1. Scanner scanner = new Scanner(System. in); ​
2. while(scanner. hasNext()) {
3. System. out. println(scanner. nextInt()); }

Which function is used to read a single character and is alternate to Scanf?

getchar() function
getchar() function can be used to read a single character. This function is alternate to scanf() function.

Why & is used in scanf and not in printf?

scanf needs to write on a memory location. It needs an address where it can write a value. This is done through the & operator. printf just needs the values to output them and hence it doesn’t need a memory location reference.

What will happen if we don’t use the & in the scanf function?

The program will compile successfully. It will print the number incorrectly but it will run till the end without crashing.

Which function can be called without using an object of a class in C++?

Like static data members, you may access a static member function f() of a class A without using an object of class A .

How do I get user input when scanf() is not working?

When you cannot use scanf (), the only way to give user input to your program would be through command line arguments. The command line arguments are passed to a program while you execute it from the command line. These arguments will be received as an array of string in your main function.

What is the use of scanscanf()?

scanf () 1 It is used to read the input (character, string, numeric data) from the standard input (keyboard). 2 It is used to read the input until it encounters a whitespace, newline or End Of File (EOF). More

What is the difference between scanscanf() and gets() in C++?

scanf () reads input until it encounters whitespace, newline or End Of File (EOF) whereas gets () reads input until it encounters newline or End Of File (EOF), gets () does not stop reading input when it encounters whitespace instead it takes whitespace as a string.

How to read entire string in C with scanf?

Actually we can use scanf () to read entire string. For example we can use \% [^ ]s inside scanf () to read entire string. The above code reads the string until it encounters newline. Want to learn from the best curated videos and practice problems, check out the C Foundation Course for Basic to Advanced C.