string copy in c++ code example

Example 1: copy array in java

int[] src  = new int[]{1,2,3,4,5};
int[] dest = new int[5];

System.arraycopy( src, 0, dest, 0, src.length );

Example 2: erasing a character from a string in c++

// string::erase
#include <iostream>
#include <string>

int main ()
{
  std::string str ("This is an example sentence.");
  std::cout << str << '\n';
                                           // "This is an example sentence."
  str.erase (10,8);                        //            ^^^^^^^^
  std::cout << str << '\n';
                                           // "This is an sentence."
  str.erase (str.begin()+9);               //           ^
  std::cout << str << '\n';
                                           // "This is a sentence."
  str.erase (str.begin()+5, str.end()-9);  //       ^^^^^
  std::cout << str << '\n';
                                           // "This sentence."
  return 0;
}

Example 3: string copy in cpp

//use '=' to copy string
string s1={"Hello"};
string s2;
s2=s1;	//now s2 will have a copu s1

Example 4: find in string c++

size_t find (const string& str, size_t pos = 0) const;