For ~ C++ and Webprogramming

You can call for as simplified version of while. When "while" only use condition inside parentheses, you can put three statement. There are first value of a variable, condition, and variable changes. Here is the syntax.

for(first_value;condition;arithmetic_operations)statement;f
for(first_value;condition;arithmetic_operations){statement1;statement2;//other statements}

Example :

#include <iostream>

using namespace std;

int main(){
    int numr;
	
    for(numr=1;numr<=10;numr++){
       cout << numr << endl;
    }

    cout << "finished";
    return 0;
}

Example :

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10
finished

That code has similar output with the code that you can see below.

#include <iostream>

using namespace std;

int main(){
    int numr=1;
	
    while(numr<=10){
       cout << numr << endl;
       numr++;
    }

    cout << "finished";
    return 0;
}

Example :

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2
3
4
5
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7
8
9
10
finished

While or for loop will be repeated as long as condition is true.