DEV Community: Mohammed Salah

C++28th code (The ternary operator in C++ )

Mohammed Salah — Tue, 04 Feb 2025 19:08:38 +0000

    #include<iostream>
    using namespace std; 
    int main()
    {
float a,b;
cout<<" \n\tEnter First number : "; 
cin >> a; 
cout<<"\n\t  ===========================\n "; 
cout<<"\n\t Enter Second number : " ; 
cin>>b; 
cout<<"\n\t  ===========================\n "; 
//The ternary operator in C++
//condition ? expression1 : expression2;
float Max = (a>b)? (a): (b);
cout<<"\n\t The Max Value is = "<<Max; 
cout<<"\n\n\t  ===========================\n "; 
cin.get();
return 0 ; 
    }

C++27th code (The sum of the number and the ASCII value of the character)

Mohammed Salah — Thu, 30 Jan 2025 18:25:59 +0000

    #include<iostream>
    using namespace std; 
    int main()
    {
int a; 
char b; 
cout<<" \n\tEnter  a number:  "; 
cin>>a; 
cout<<"\n============================================\n"<<endl; 
cout<<"\n\tEnter a charachter : "; 
cin>>b; 
cout<<"\n\t---------------------------------------\n"<<endl; 
cout<<" You have Enter --> "<<(a+b)<<endl; 
cin.get();
return 0; 
    }

C++26th Code ( print the size of various data types in C++)

Mohammed Salah — Thu, 30 Jan 2025 11:43:13 +0000

#include<iostream>
#include<cstdint>
using namespace std;
int main()
{
cout<<"\n\tint          -->  "<<sizeof(int)<<endl;
cout<<"\n\tuint8        -->  "<<sizeof(uint8_t)<<endl;
cout<<"\n\tuint16       -->  "<<sizeof(uint16_t)<<endl;
cout<<"\n\tuint32       -->  "<<sizeof(uint32_t)<<endl;
cout<<"\n\tuint64       -->  "<<sizeof(uint64_t)<<endl;
cout<<"\n\tint8_        -->  "<<sizeof(int8_t)<<endl;
cout<<"\n\tint16        -->  "<<sizeof(int16_t)<<endl;
cout<<"\n\tint32        -->  "<<sizeof(int32_t)<<endl;
cout<<"\n\tint64        -->  "<<sizeof(int64_t)<<endl;
cout<<"\n\tsigned       -->  "<<sizeof(signed)<<endl;
cout<<"\n\tunsigned     -->  "<<sizeof(unsigned)<<endl;
cout<<"\n\tshort        -->  "<<sizeof(short)<<endl;
cout<<"\n\tlong         -->  "<<sizeof(long)<<endl;
cout<<"\n\tlong long    -->  "<<sizeof(long long)<<endl;
cout<<"\n\tfloat        -->  "<<sizeof(float)<<endl;
cout<<"\n\tdouble       -->  "<<sizeof(double)<<endl;
cout<<"\n\tLong double  -->  "<<sizeof(long double )<<endl;
cout<<"\n\tChar         -->  "<<sizeof(char)<<endl;
cout<<"\n\tString       -->  "<<sizeof(string)<<endl;
cout<<"\n\tbool         -->  "<<sizeof(bool)<<endl;
cout<<"\n\twchar        -->  "<<sizeof(wchar_t)<<endl;
cin.get();
return 0 ;
}

C++25th Code ( ASCII Character)

Mohammed Salah — Mon, 27 Jan 2025 20:09:08 +0000

    #include<iostream>
    using namespace std; 
    int main()
    {
char a; 
cout<<"\n\t Enter an English  Capital or Small letter : "; 
cin>>a;
cout<<"\n\t The ASCII Code = "; 
cout<<int(a)<<endl; 
int x ; 
cout<<"\n\t Enter an number from Ascii table to obtain The  
    symbole : " ; 
cin>>x ; 
cout<<"\n\t You have Entered number = ("<<x<<") Wich Equal --> 
    "<<char(x)<<endl; 
cout<<"\n"<<endl;
cin.get();
cin.get();
cin.get();
system("pause");
system("pause");
system("pause");
return 0 ; 
    }

C++24th Code ( define Variable by Auto )

Mohammed Salah — Mon, 27 Jan 2025 17:40:04 +0000

    #include<iostream>
    #include<iomanip>
    using namespace std;
    int main()
    {
auto x=0.0 ,y=0.0 ;
cout<<" \n\tEnter The Value of  x :  ";
cin>>x;
cout<<"\n"<<endl;
cout<<" \n\tEnter The Value of  y :  ";
cin>>y;
cout<<"\n"<<endl;
    cout<<"\n\t============================\n"<<endl;
    cout<<fixed<<setprecision(2)<<endl;
cout<<" \n\tThe sum of x + y = " <<x+y<<endl;
cout<<" \n\tThe sub of x - y = " <<x-y<<endl;
cout<<" \n\tThe mul of x * y = " <<x*y<<endl;
if(y!=0)
    {
    cout<<" \n\tThe div of x / y = " <<x/y<<endl;
    }
    else
    {
    cout<<" \n\t Sorry Can't Divide on Zero = Non " <<endl;
    }
cout<<"\n\tThe size of x = " <<sizeof(x)<<"  Byte"<< endl;
cout<<"\n\tThe size of y = " <<sizeof(y)<<"  Byte\n\n"<<endl;
system("pause");
cin.get();
return 0;
    }

C++23rd Code (the memory size (in bytes) of each variable type using sizeof)

Mohammed Salah — Mon, 27 Jan 2025 11:19:12 +0000

 #include<iostream>
 using namespace std; 
 int main()
 {
 cout<<sizeof(int)<<endl;
 cout<<sizeof(float)<<endl;
 cout<<sizeof(double)<<endl;
 cout<<sizeof(long double)<<endl;
 cout<<sizeof(char)<<endl;
 cout<<sizeof(string)<<endl;
 return 0; 
 }

C++22nd Code--> (the memory size (in bytes) of each variable type using sizeof)

Mohammed Salah — Sun, 26 Jan 2025 22:02:06 +0000

    #include<iostream>
    using namespace std; 
    int main()
    {
int x ; 
float y ; 
double z; 
long double l ; 
cout<<"Enter int number x : ";
cin>>x; 
cout<<endl; 
cout<<"Enter int number y : ";
cin>>y; 
cout<<endl; 
cout<<"Enter int number z : ";
cin>>z; 
cout<<endl; 
    cout<<"Enter int number l : ";
cin>>l; 
cout<<endl; 
cout<<sizeof(x)<<endl;
cout<<sizeof(y)<<endl;
cout<<sizeof(z)<<endl;
cout<<sizeof(l)<<endl;
cin.get();
return 0 ; 
    }

C++21st Code(Your age by year , month,days,hrs,min,seconds)

Mohammed Salah — Sun, 26 Jan 2025 11:22:43 +0000

    #include<iostream>
    using namespace std;
    int main()
    {
     cout<<"\n\t\t=============================================\n";
     cout<<"\n\t\t ===( Your age in years, months, days, minutes and 
    seconds )==\n";
    cout<<"\n\t\t 
    ======================================================\n";
    double a ;
    cout<<"\n \n\t\t Enter Your age by years : ";
    cin>>a;
    cout<<"\n \n\t\t Your age is "<<a<<" Years " ;
    cout<<"\n  \n \t\t = \t    " << (a*12)<<" Months ";
    cout<<"\n  \n \t\t = \t    "<< (a*365)<<" days";
    cout<<"\n  \n \t\t = \t    "<< (a*365*24)<<" Hours";
    cout<<"\n  \n \t\t = \t    "<< ((a*365*24*60))<<" Miniutes";
    cout<<"\n  \n \t\t = \t    "<< (a*365*24*60*60)<<" Seconds\n";
    cout<<"\n\t\t=========================================" <<endl;
    cin.get();
    return 0;
    }

C++20th Code (Constant by #define) -->Not prefere

Mohammed Salah — Sun, 26 Jan 2025 09:49:02 +0000

    #include<iostream>
    using namespace std;
    #include<iomanip>
    #define con 3.1415926535897932384626433832795
    int main()
    {
    cout<<fixed<<setprecision(15);
    cout<<con<<endl;
    cin.get();
    return con;
    }

C++19th Code ( postfix & Prefix) --> (X++) & (++X)

Mohammed Salah — Sat, 25 Jan 2025 20:39:47 +0000

 #include<iostream>
 using namespace std; 
 int main()
 {
 int x = 1; 
 ++x;
 cout<<" x = "<<x++<<endl;
 cout<<" new x = "<<x<<endl;
 return 0 ;
 }

C++18th code ( start each line with ; ) --> Not clean code

Mohammed Salah — Sat, 25 Jan 2025 19:58:42 +0000

    #include<iostream>
    using namespace std; 
    int main()
    {
cout<<"\n Welcome With Md salah in C++ "
;cout<<"\n The syntax could be write as this shape"
;cout<<"\n But this is a bad shape "
;cout<<"\n So Try To Write  a clean code "<<endl<<endl<<endl; 
return 0 ;  
    }

C++17th code--> [Constant (pi) & iomanpi ] with Precision (51)

Mohammed Salah — Fri, 24 Jan 2025 21:32:36 +0000

#include<iostream>
#include<iomanip>
using namespace std; 
int main()
{
const  double pi=22.0/7.0;
cout<<fixed<<setprecision(51); 
cout<<"\n\t Pi = "<<pi<<endl; 
cin.get();
system("pause"); 
return 0 ; 
}