string insert c 2b 2b

1// appending to string
2#include <iostream>
3#include <string>
4
5int main ()
6{
7  std::string str;
8  std::string str2="Writing ";
9  std::string str3="print 10 and then 5 more";
10
11  // used in the same order as described above:
12  str.append(str2);                       // "Writing "
13  str.append(str3,6,3);                   // "10 "
14  str.append("dots are cool",5);          // "dots "
15  str.append("here: ");                   // "here: "
16  str.append(10u,'.');                    // ".........."
17  str.append(str3.begin()+8,str3.end());  // " and then 5 more"
18  str.append<int>(5,0x2E);                // "....."
19
20  std::cout << str << '\n';
21  return 0;
22}

1// inserting into a string
2#include <iostream>
3#include <string>
4
5int main ()
6{
7  std::string str="to be question";
8  std::string str2="the ";
9  std::string str3="or not to be";
10  std::string::iterator it;
11
12  // used in the same order as described above:
13  str.insert(6,str2);                 // to be (the )question
14  str.insert(6,str3,3,4);             // to be (not )the question
15  str.insert(10,"that is cool",8);    // to be not (that is )the question
16  str.insert(10,"to be ");            // to be not (to be )that is the question
17  str.insert(15,1,':');               // to be not to be(:) that is the question
18  it = str.insert(str.begin()+5,','); // to be(,) not to be: that is the question
19  str.insert (str.end(),3,'.');       // to be, not to be: that is the question(...)
20  str.insert (it+2,str3.begin(),str3.begin()+3); // (or )
21
22  std::cout << str << '\n';
23  return 0;
24}

1#include<iostream>
2#include <string>
3int main() {
4	//"Ever thing inside these double quotes becomes const char array"
5//	std::string namee = "Caleb" +"Hello";//This will give error because adding const char array to const char array 
6	std::string namee = "Caleb";
7	namee += " Hello";//This will work because adding a ptr to a actual string
8	std::cout << namee << std::endl;// output=>Caleb Hello
9//You can also use the below
10	std::string namee2 = std::string("Caleb")+" Hello";// This will work because constructor will convert const char array  to string, adding a ptr to string
11	std::cout << namee2 << std::endl;// output=>Caleb Hello
12	std::cin.get();
13}