Ascii-and-string

ASCII and String Operations

ASCII (American Standard Code for Information Interchange)

ASCII Value of a Character

A -> 65
B -> 66
C -> 67
   .
   .
   .
Z -> 90


a -> 97
b -> 98
c -> 99
   .
   .
   .
z -> 122

Example : 1

#include <iostream>
using namespace std;

int main() {
    char alpha = 'A';

    cout<<"Char : "<<alpha;

    return 0;
}

Output :

Char: A

Explanation :

In a line no 5 we declare one variable that name has alpha and store A character, datatype is char.
print Char : and alpha variable using cout.

Example : 2

#include <iostream>
using namespace std;

int main() {
    char alpha = 'A';
    int val = alpha;

    cout<<"Char: "<<alpha<<endl;
    cout<<"ASCII :"<<val;

    return 0;
}

Output :

Char: A
ASCII :65

Explanation :

In a line no 5 we declare one variable that name has alpha and store A character, datatype is char.
In a Line no 6 we declare int variable that name has val, store value of alpha variable.
print Char : and alpha variable using cout, endl for new line.
print ASCII : and val variable using cout.

Example : 3

#include <iostream>
using namespace std;

int main() {
    char alpha = 'b';
    int val = alpha;

    cout<<"Char: "<<alpha<<endl;
    cout<<"ASCII :"<<val;

    return 0;
}

Output :

Char: b
ASCII :98

Explanation :

In a line no 5 we declare one variable that name has alpha and store b character, datatype is char.
In a Line no 6 we declare int variable that name has val, store value of alpha variable.
print Char : and alpha variable using cout, endl for new line.
print ASCII : and val variable using cout.

Example : 4

   #include <iostream>
using namespace std;

int main() {

int ascii = 99;

char alpha = ascii;

cout<<"ASCII: "<<ascii<<endl;
cout<<"Char: "<<alpha;

    return 0;
}

Output :

ASCII: 99
Char: c

Explanation :

In a line no 5 we declare one variable that name has ascii and store 99 character, datatype is int.
In a line no 7 we declare char variable and store value of ascii variable.
print ASCII : and ascii variable using cout, endl for new line.
print Char : and alpha variable using cout.

How to convert capital letter into small.

capital -> small
A -> a
cap ascii + 32 => small
65 + 32 => 97
97 <= a

Example : 5

#include <iostream>
using namespace std;

int main() {

    char capital;
    cout<<"Enter Capital: ";
    cin>>capital;

    char small = capital + 32;
    cout<<small;

    return 0;
}

Output :

Enter Capital : B
b

Explanation :

In a Line no 5 we declare one variable that name has capital, datatype is char.
Print Enter Capital: from user using cout.
store value of capatial using cin
We declare small variable and store capatial + 32
print small variable using cout

Example : 6

#include <iostream>
using namespace std;

int main() {
     string name;
     cout<<"Enter Capital Name: "<<endl;
     cin>>name;

     int i = 0;

     while(name[i]!='\0')
     {
        name[i] = name[i]+32;
        i++;
     }

     cout<<"Small Letter is :"<<name;

}

Output :

Enter Capital Name : ACHAL
Small Letter is : achal

Explanation :

In a Line no 5 we declare one variable that name has name, datatype is string.
print "Enter Capital Name: "from user using cout.
initialised i variablle store value 0, datatype is int.
Start while loop and check condition (name[i]!='\0').
we declare array name[i] and store value of name[i]+32 .
Print Small Letter is : and name variable using cout.

Example : 7

#include <iostream>
using namespace std;

int main() {
     string name;
     cout"<<Enter Capital Name: "<<endl;

     int i = 0;

     while(name[i]!='\0')
     {
        name[i] = name[i]+32;
        i++;
     }

     cout<<"Small Letter is :"<<name;

}

Output :

Enter Capital Name : HELLO
Small Letter is : hello

Explanation :

WAP to convert small letter into capital.

small -> capital
a -> A
small-ascii - 32 => cap ascii
100 - 32 => 97

Example : 8

#include <iostream>
using namespace std;

int main() {

    char small;
    cout<<"Enter Small: ";
    cin>>small;

    char capital = small - 32;
    cout<<capital;

    return 0;
}

Output :

Enter Capital : a
A

Explanation :

In a Line no 5 we declare one variable that name has small, datatype is char.
Print Enter small: from user using cout.
store value of small using cin
We declare capatial variable and store small - 32
print capital variable using cout

Example : 9

int main() {

    string name;
    cout<<"Enter Small Name: ";
    cin>>name;

    int i=0;

    while(name[i]!='\0')
    {
        name[i] = name[i]-32;
        i++;
    }

    cout<<"Capital Letter is: "<<name;
    return 0;
}

Output :

Enter small name: hello
Capital Letter is: HELLO

Explanation :

In a Line no 5 we declare one variable that name has name, datatype is string.
print "Enter Small Name: "from user using cout.
initialised i variablle store value 0, datatype is int.
Start while loop and check condition (name[i]!='\0').
we declare array name[i] and store value of name[i]-32 .
Print Small Letter is : and name variable using cout.

ASCII and String Operations​

ASCII and String Operations