C++ Program to convert Uppercase String to Lowercase String

  #include<iostream>         #include<iomanip>         #include<string.h>         using namespace std;

        void line()

{    

    cout<<"========================\n";

}    

int main()

{

         int i;

char arr[20];

line();

cout<<"String Programs #7\n";

line();

cout<<"Enter Upper Case String :";

cin.getline(arr,20);

cout<<"lowercase string is : ";

for(i=0;arr[i]!='\0';i++)

{

arr[i]=arr[i]+32;

cout<<arr[i];

}

arr[i]='\0';

}