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Octal Decimal Hexadecimal conversions method 2

admin — Sat, 14 Mar 2009 14:49:13 +0000

#include

int main()
{
cout<<"The decimal value of 15 is "<<15< cout<<"The octal value of 15 is "< cout<<"The hex value of 15 is "<

return 0;

}

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Octal Decimal Hexadecimal conversions

admin — Fri, 13 Mar 2009 07:53:19 +0000

#include
#include

int main()
{
cout<<"The decimal value of 15 is "<<15< cout<<"The octal value of 15 is "< cout<<"The hex value of 15 is "<

return 0;

}

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Launch notepad

admin — Thu, 12 Mar 2009 00:21:04 +0000

/**************************************
launch notepad C++ version
***************************************/
#include
#include

int main(void)
{

cout<<"Explorer will launch.n"< /*replace with the path to your explorer.exe*/
system(“h:\windows\explorer.exe”);

return 0;
}

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An if elese example

admin — Tue, 10 Mar 2009 17:52:57 +0000

#include
#include

int main()
{
double radius;
//get user input
cout<<"Please enter the radius : ";
cin>>radius;
//act on user input
if(radius < 0.0)
cout<<"Cannot have a negative radius"< else
cout<<"The area of the circle is "<<3.1416 * pow(radius,2)<

return 0;
}

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A cin.getline example

admin — Mon, 09 Mar 2009 10:41:58 +0000

/**************************************
cin.getline example
***************************************/
#include

int main(void)
{
const SIZE = 100;
char msg[SIZE];
cout<<"Enter a string."< cin.getline(msg,SIZE);
cout<<"The sentence you entered was"< cout<

return 0;
}

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Fahrenheit to celsius example

admin — Sun, 08 Mar 2009 03:35:42 +0000

#include

int main()
{
double fahr , celsius;
cout<<"Enter the temperature in degrees fahrenheit: ";
cin>>fahr;
//convert to celsius
celsius = (5.0 / 9.0) * (fahr – 32.0);
cout<<"The temperature in celsius is "<

return 0;
}

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A setw example

admin — Fri, 06 Mar 2009 20:01:01 +0000

//illustrates setting cout width

#include
#include
#include

int main()
{

cout< cout< cout<

return 0;
}

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Another file example

admin — Thu, 05 Mar 2009 12:58:38 +0000

#include
#include

int main()

{
// first lets output to a file
ofstream fout(“sample.txt”);
fout << "programmershelp" << endl;
fout.close();
char str[20];
//read in the file
ifstream fin(“sample.txt”);
fin >> str;
fin.close();
//display sample.txt contents
cout << "data read from file: " << str << endl;
return 0;
}

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A file example

admin — Wed, 04 Mar 2009 05:56:36 +0000

#include
#include
const char *FILENAME = “myfile.txt”;

int main()
{
//create output object associated w/ file
ofstream fout(FILENAME);
cout << "Enter your text: ";
char str[100];
cin >> str;
//write the text to the file
fout << "here is your textn";
fout < //close file
fout.close();

ifstream fin(FILENAME);
char ch;
while (fin.get(ch))
cout << ch;
fin.close();
return 0;
}

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A cout.width example

admin — Mon, 02 Mar 2009 23:29:06 +0000

//illustrates setting the minimum
//output width using the width member
#include
#include

int main()
{
int i;
for(i=0;i<=5;i++)
{
cout.width(3);
cout< }

return 0;
}

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