C++ Program to Convert Lowercase to Uppercase: we will read a character and check whether it is a valid alphabet or not if it is a valid alphabet (from A-Z or a-z), we will check uppercase character if it is uppercase character.
C++ Program to Convert Lowercase to Uppercase
#include <iostream>
using namespace std;
int main()
{
char ch;
cout<<"Please input a valid character (Alphabet): ";
cin>>ch;
if((ch>='A' && ch<='Z') || (ch>='a' && ch<='z'))
{
if(ch>='A' && ch<='Z')
ch=ch+32;
else if(ch>='a' && ch<='z')
ch=ch-32;
else
; //none
cout<<"converted character is: "<<ch<<endl;
}
else
{
cout<<"Entered character is not a valid alphabet!!!"<<endl;
}
return 0;
}
Output of Program
Please input a valid character (Alphabet): a bc d d
converted character is: A