Basic Input Output In C++

In the previous topic about c++, we have learned about the operator. In that example, you see cout and iostream. Those parts are the basic input and output in c++. And this time we learn the basics of input and output.

Iostream is the definition of input and output stream. When we include the iostream library, then we can do input and output of a program.

---

cout

This command produces output of a program on the screen. cout is always associated with an insertion operator, <<, with operator of this the data that follows thereafter will be processed. You can enter the operator more than once, consider the following example

cout << "Show threelas name on screen" << "and you see our example of c++";

To note when we use the cout, that the result of court does not produce a new line. So our suggestion to add the code with the endl, consider the following example

court <<"Show threelas name on screen" << endl; court <<"this is a new line Because you add endl";

---

cin

This operator is the opposite of the service cout. This operator serves as the input of a program (via keyboard). And every cin always followed by the extraction operator, >>, you need to consider is the type of variables used. If you use double then cin will read it as a double variable.

int i; cin >> i;

As with any cout, extraction operators can also be inserted more than one.

cin >> a >> b;

above code would require two inputs with variable names are a and b. We can also use cin to input a string. However, when the string is a sentence, then cin can not read it properly. Therefore, the use of getline is very good. Please note, if you use the input string, then you must add the string library.

#include <iostream> #include <string> using namespace std; int main() { string myword; cout << "input one or more words" << endl; getline(cin,myword); cout << "this result if we are using getline " << myword << endl; return 0; }