If else statement displaying both options.

[Sensei Nacho]

Hi, I am new to coding and have a question with my if else statement. This is a VERY simple program that I have made something like in Javascript before, but when I do it in C++ it does not work correctly. It displays both the options. Here is my code.
// Practice.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>

using namespace std;

int main()
// Asking for a number
{
int x;
cout << "Give me a number.";
cin.ignore();
cin >> x;
if (x < 25)
{
cout << "That is a small number.";
}
else (x >= 25);
{
cout << "That is a big number!";
}
}

[GCDEF]

Hi, I am new to coding and have a question with my if else statement. This is a VERY simple program that I have made something like in Javascript before, but when I do it in C++ it does not work correctly. It displays both the options. Here is my code.
// Practice.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>

using namespace std;

int main()
// Asking for a number
{
int x;
cout << "Give me a number.";
cin.ignore();
cin >> x;
if (x < 25)
{
cout << "That is a small number.";
}
else (x >= 25);
{
cout << "That is a big number!";
}
}

You either need else without the condition, or add an if after the else. By itself (x >= 25) doesn't do anything. Further, since you have a semi-colon after your (x >=25) statement, the big number part isn't even part of the condition. It will always output.

[Sensei Nacho]

OK thanks, but now it only displays "That is a small number."

[Sensei Nacho]

You either need else without the condition, or add an if after the else. By itself (x >= 25) doesn't do anything. Further, since you have a semi-colon after your (x >=25) statement, the big number part isn't even part of the condition. It will always output.

Thanks but now it only displays "That is a small number.". What am I doing wrong?

[GCDEF]

Post your current code.

[Sensei Nacho]

Post your current code.

// Practice.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>

using namespace std;

int main()
// Asking for a number
{
int x;
cout << "Give me a number.";
cin.ignore();
cin >> x;
if (x < 25)
{
cout << "That is a small number.";
}
else
{
cout << "That is a big number!";
}
}

[Arjay]

In c++ always initialize your variables. Also step through your code or use trace statements to see what is wrong. Btw what does cin.ignore do?

[Sensei Nacho]

In c++ always initialize your variables. Also step through your code or use trace statements to see what is wrong. Btw what does cin.ignore do?

What do these mean?

[Arjay]

What do these mean?

Initialize your variables means to declare them and then set them. You can do this all in one step. In C++, initializing variables prevents a variable from starting out with garbage and it's a good practice to get into (because they are often a source of bugs).

int x;  // uninitialized variable it's anyone's guess what its starting value will be.

int y = 0;  variable declared and initialized to 0

[Sensei Nacho]

Initialize your variables means to declare them and then set them. You can do this all in one step. In C++, initializing variables prevents a variable from starting out with garbage and it's a good practice to get into (because they are often a source of bugs).

int x;  // uninitialized variable it's anyone's guess what its starting value will be.

int y = 0;  variable declared and initialized to 0

So if I want the variable to be something the user enters, how do I initialize it?

[2kaud]

Before posting, please format your code properly and use code tags. Go advanced, select the code and click '#'.

Arjay has given you the hint asking about cin.ignore().

[Sensei Nacho]

Before posting, please format your code properly and use code tags. Go advanced, select the code and click '#'.

Arjay has given you the hint asking about cin.ignore().

How do I do this?

[VictorN]

How do I do this?

Begin with reading the Announcement: Before you post....

[Sensei Nacho]

Begin with reading the Announcement: Before you post....

Sorry, I despise forums and only did this one to get help from the community because I thought it would be very useful, so I had no idea about things like this.

[Arjay]

Sorry, I despise forums and only did this one to get help from the community because I thought it would be very useful, so I had no idea about things like this.

Not sure what there is to despise about forums where volunteers help folks solve issues without compensation or in many cases, thanks.