char at in c 2b 2b

1#include <iostream>
2using namespace std;
3int main() {
4	char grade = 'B';
5	cout << "I scored a: "<<grade;
6	return 0;
7}
8

1#include <iostream>
2using namespace std;
3
4int main() 
5{
6	char* name = "Raj";	//can store a sequence of characters.
7	const char* school = "oxford";
8	//school[0] = 'O';		//gives runtime error. We can't modify it.
9	cout << name<<" "<<school;
10	
11	return 0;
12}

1str.at(index)