Friday, March 3, 2017

Read this if you have a Chromebook.

my chromebook is faster than your $10000 pc

So when I develop, I use an application called Code::Blocks which is an IDE (Integrated Development Environment) for Windows, OS X, or Linux based machines. But not everyone reading this blog are using a Windows, OS X, or Linux machine. They might be using Chromebooks, iPhones, Android devices, etc. If that's the case for you, then you're in luck. There is a website called Remote Interview that has an online C++ IDE. It works almost as well as Code::Blocks.

So to set it up, click on the option that says "NEW PAD", as shown below:


Next, click on the area that says "C#" and change it to "C++".


Next, click on the button next to autocomplete and click it once.


Now, you should have a working online development suite. And even better, you have access to multiple languages like C#, Java, Python, etc.

That;s all I have for now.

Thursday, March 2, 2017

Getting good at: C++ | #10 - enumerated constants, integers and more typedef

10 - typedef int our; our number = 1;

     Hows it goin bros, coat hanger here. Today, we're going to use typedef. As I said in the last post, typedef is used to substitute keywords in integers. "How is this useful?", you ask. To show you why, I will have to go over another integer type, the unsigned integer.

     Now, an unsigned integer is basically a whole number integer, meaning it cannot store a negative value. Along with that, there is the long integer and the short integer. A long integer can store values from -2 billion to 2 billion, and a short integer can store values from -32768 to 32767. All of the possible integer types can be found here. Now, if you were writing a program that uses a lot of unsigned long integers, you would probably get tired of writing unsigned long number = 32000;, and that's where ya boi typedef comes in. So instead of typing unsigned long number 32000;, you can just type something like ulo number 32000;

     Last post, I talked about constants, read-only variables. Now, I'm going to talk about enumerated constants. This is basically a way to store multiple constants on one line. To declare it, you have to write something like this: enum name { N=1, A=3, M=5, E=8 };. If you don't set the variables to anything, then the beginning variable is set to zero, and the variable to the right of it is the left + 1.

That's all I have for this post. 

Wednesday, February 15, 2017

Getting good at: C++ | #9 - Constants and typedef

#9 - typedef long post

What's goin on everyone, this is FitMC. Today, we're going to learn about constants. Constants are essentially read-only variables, meaning that once you define them, you can't change them later in the program without modifying the value in the constant. You'll see what I mean later on.

There are a couple ways you can define a constant. 

1. Type #define CONSTANTNAME 1, where CONSTANTNAME is the name of your constant, and 1 is the value. You do not have to capitalize your constant name when defining it like this, but I recommend that you do for the sake of readability.

2. In any function, type const int net = 100;. The constant doesn't always have to be an integer. For instance, something like this will work: 
const char when_i_say_go[] ={'b','e','r','e','a','d','y','t','o','t','h','r','o','w'};

^This is not on a different line. It should look something like this:

This may look confusing. You don't have to know this yet, but keep it in mind. 


Now, we're going to look at a statement called typedef. This statement allows you to substitute keywords like int, char, float, double, etc for other words. For example, you could write something like this:

typedef int i;

The int keyword is being substituted by the letter 'i', and everywhere else in the program you can use the letter 'i' to fill in for the keyword int. You don't have to use a single letter to fill in for a keyword. If you really want to, you could write something like this:

You may be wondering why this is useful. In the next post, you'll see why. That's all I have for now. Until then...

Thursday, December 8, 2016

Getting good at: C | #2 - getchar and putchar

2 - putchar('='); putchar(')');

How's it going bros. The next jacksepticeye here. Today, I'm going to show you how to use getchar() and putchar(). These are self explanitory: getchar receives a character, and putchar prints out a character. 

So to use putchar, type putchar(':'); in your main function. You can replace ':' with any character you want, so long as you keep it inside the single quotes. Your program should look like this:

int main()
{
    putchar(':');
    return 0;
}

This should print a colon on the screen.

In order to use getchar, we have to be familiar with another type of variable: char. (Actually, you can get away with using regular variables, but I don't recommend it.) Char is a variable that can only be used for characters. (You can set char variables to equal numeric values, but it'll be translated to ASCII, which will make it a character.) To use it, type char name = ':';, where 'name' is any name you want, and ':' is the character the 'name' is set to. Like regular variables, we can set char name to nothing, but to use getchar, you have to set char name equal to getchar(). Your program should look something like this:

int main()
{
    char name = getchar();
    return 0;
}

This allows the user to input any character. To output this character, just add printf("%c",name);, where "%c" tells printf() that the integer we're passing through is a character. Your program should look something like this:

int main()
{
    char name = getchar();
    printf("%c",memes);
    return 0;
}

This allows the user to input a character and outputs the same character. You can also use getchar() to pause a program. For example:


int main()
{
    int memes;
    memes = 1337;
    printf("memes = %d\nPress any key to continue.\n",memes);
    getchar();
    return 0;

}

This prompts the user to enter a character, and only after that will the program stop.

NOTE: You don't have to do the challenges below, but you can if you want to.

With this newfound knowledge, write a program that properly utilize both getchar() and putchar().

That's all I have for now. Until then...

Friday, December 2, 2016

Getting good at: C | #1 - Integers and printf()

1 - int a = 9

No, that's not a typo. C is a programming language published in 1978 by a company called 'Bell Labs'. (later AT&T)

C and C++ are very similar in syntax (They both look similar), but there are a few differences, a big one being that you can't make a class the same way you could in C++. With that out of the way, let's get right into this.

NOTE: If you have not installed Code::Blocks prior to reading this tutorial, do so now. If you're having trouble installing it, refer to this post.

So before we get started, we need to first make a C project. (Most projects are C++ by default.) 

Step 1: Click on 'Create a new project'.

Step 2: Click on 'Console Application'.

Step 3: Click 'Next >' once.

Step 4: Choose 'C' from the list.

Step 5: Continue as normal.

So after you're done, you should see something like this:

#include <stdio.h>
#include <stdlib.h>

int main()
{
     printf("Hello World\n");
     return 0;
}

This is a program that prints 'Hello World' on the screen. This is how it works:

#include - This tells the compiler to include a header file, usually stdio.h

int main() -  This is your main function. You can put statements like 'printf()' in it. 

NOTE: Don't forget to include this function in your program, or else it won't compile.

printf("words") - This statement prints words, values, or other stuff on the screen.

return 0 - When a program runs successfully, it returns a value of '0' to the system, telling it that the program ran without errors.

NOTE: Don't forget to put semi-colons at the end of your statements. Otherwise, you'll 
T R I G G E R your compiler.

To make a variable in C, you type 'int ' (without the quotes) and then your variable name. Then set it equal to something. (The bold letters signify that it was typed recently. You don't have to copy and paste the entire function to write a new statement.) It should look like this:

#include <stdio.h>

int main()
{
     int a = 2;
     return 0;
}

After that's done, press 'enter' and type 'printf("")' (without the ' quotes). In the " quotes, type %d . Outside the " quotes but still in the parentheses, put a comma, and then your variable name, in this case it's a. It should look like this:

#include <stdio.h>

int main()
{
     int a = 2;
     printf("%d", a);
     return 0;
}

After you're done, you should see something like this:

2
Process returned 0 (0x0)
Press any key to continue.


homework

You don't have to do these, but you can if you want to. I highly recommend you do so, because they will make learning programming languages a lot easier.

Exercise 1-1: Write a program that prints 5 on the screen, but make a variable and pass it to printf() rather than doing something like 'printf("5");'.


That's all I've got for today.

Wednesday, November 23, 2016

Why I haven't been posting.

dead blog

So I haven't been posting at all this week and you may be wondering why.Well first of all, I'm lazy, and second, I'm starting to learn other programming languages such as C (Not C++), Java, and C# so I can make a series on those later on. On top of that, i started experimenting with an operating system called "ReactOS", and if you don't know what ReactOS is, check out this page. That's all I've got for now.

Tuesday, November 15, 2016

Getting good at: C++ | #8 - while and do-while loops

8 - inception

Hey guys. The next pewdiepie here. Today, I'm going to show you how to make 'while' and 'do-while' loops. So a while loop is a type of loop that occurs when a conditional is true. If we make a variable named 'conditi0nal', and set it equal to 100, then we can write something like:

while(conditi0nal<=200)
{
     cout << "memes" << endl;
     conditi0nal++;
}

So as long as 'conditi0nal' is less than or equal to 200, it will print out "memes" and increase the value of 'conditi0nal' by one until it reaches 200.

A do-while loop is similar to the while loop, except that it does that body of code regardless if the conditional is true or false. So something like this:

do{
     cout << "memes" << endl;
     conditi0nal++;
}while(conditi0nal<=200);

This version of the while loop isn't used very often, so you don't have to worry about it too much.

While loops can also be used for user-defined variables. For example:

int answer;
cout >> "Is Control Alt Defeat best YouTuber?\n1. Yes\n2. No\n";
cin >> input;

while (input!=1)
{
     cout << "wrong answer" << endl;
     cin >> input;
}

cout << "thats right" << endl;

So in this program, we created a variable, and made the user input a value of 1 or 2. If the variable is set to 1 (it better not be), it will keep going until you set it to 2, in which case it will end the program.

That's all for now.