Beginners help: if statements

[process]

Ive been practicing some C++ lately and I cant seem to see why this dont work....I believe theres maybe some ; missing in the if statement ?
As u can tell from the code im a total newby to this...so any help is appreciated =)

int Main()

{
  int A,B;

  cout << "Enter two numbers \n";
		cin >> A;
	                cin >> B;

		if A > B
			cout << "Your first number was bigger \n"
		else
			cout << "\n Your second number was bigger \n"

		return 0;

}

[ben]

Originally posted by process
Ive been practicing some C++ lately and I cant seem to see why this dont work....I believe theres maybe some ; missing in the if statement ?
As u can tell from the code im a total newby to this...so any help is appreciated =)

int Main()

{
  int A,B;

  cout << "Enter two numbers \n";
		cin >> A;
	                cin >> B;

		if A > B
			cout << "Your first number was bigger \n"
		else
			cout << "\n Your second number was bigger \n"

		return 0;

}

make sure you put the ; and the end of your expessions. and also the if should be like this

int main()
{
 int A, B;

cout << "Enter two numbers: ";
cin >> A >> B;

if( A > B )
   cout << "Your first number is bigger." << endl;
else
   cout << "Your second number is bigger." << endl;

return 0;
}

hope this helps

[xenonex]

make sure you understand that the if statement syntax for c++ is:

if (conditional) // either true or false only
{ // execute statements if conditional was true
statements ; // always end a statement with a semicolon
} // end of block for if statements

[process]

so also the if statements are contained within a block like

if( A > B )
   {
   cout << "Your first number is bigger." << endl;
else
   cout << "Your second number is bigger." << endl;
   }
return 0;
}

:confused:

[Brad Jones]

Originally posted by process


so also the if statements are contained within a block like

//..... I assume some code is here that starts a function....
if( A > B )
{
cout << "Your first number is bigger." << endl;
} // Closing the true part of the if....
else
{ // starting new block for else (false part of if)....
cout << "Your second number is bigger." << endl;
}
return 0;
}


Because the blocks for this if....else statement are one line, you could also have done:


if( A > B )
cout << "Your first number is bigger." << endl;
else
cout << "Your second number is bigger." << endl;

return 0;
}



Note that the above doesn't show indenting

[process]

thx for all ur help chaps...seems more clear now :cool:

[Blade195]

What is the "endl" after each statement? I thought the semi-colon was enough to end a statment. But you guys put << endl;??? what's this for? :confused:

[process]

signals a new line

endl
endline

[Blade195]

What's wrong with using \n for signalling a new line? Is "endl" just an alternative?

[ben]

Originally posted by Blade195
What is the "endl" after each statement? I thought the semi-colon was enough to end a statment. But you guys put << endl;??? what's this for? :confused:

If you want to have the user input data right after the output as in cout << "please enter your name"; <- leaves cursor on the current line;

Doing it this way cout << "Please enter your name " << endl;
moves the cursor to a new line below "Please enter your name".

I thought I read somewhere that endl clears the buffer where in "\n" does not. Feel free to correct me if im wrong.

[Danny]

endl does two things: i flushes the stream, which means forcing output to the screen without delay, and it moves it to the next line.