buckyroberts / source-code-from-tutorials Goto Github PK

First of all I would like to thank you for providing a great tutorial for C language. U helped me get a confidence that even I can code.
The issue is that I tried the code for the challenge 1 in C language.
The question was : To create a code to check whether the password has a alphabet, a number and a $ sign.

The code I entered is :
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>

int main()
{
char password[50];
printf("please set a password with '$' sign: \n");
scanf(" %s", password);

( password == (isalpha(password)) && (isdigit(password)) && ('$') ) ? printf("Ur password is OK and u r good to go\n") : printf("Try a new password as per the terms and condition\n");

return 0;

}

I even tried with a normal If and Else loop but I am unable to get the answer. The above code runs without any error but directly jumps into the Else part.
I tried to refer ur website but the website isn't opening. Kindly help me to know the mistake done in this code.
Output obtained for the above mentioned code:

Using If and Else method :

hi bucky,
I did not understood the topic return values. could you please help me to explain with another example.

Reply soon

Where are the codes for Closing The Program Correctly and Embedded Layouts?

Please provide sample for android app interacting with database on server.

Your tutorials tell about creating sqlite database on phone itself, I need to create central repository for that data.

Dear Bucky,

On line 60 I needed to de-capitolize "String" to "string" to get it to compile. FYI.

P.S. thanks for all the educational material.

Jeff

All project in Android studio

My code:

def socket_bind():
try:
global host
global port
global s
print("Binding socket to port: " + str(port))
s.bind((host, port))
s.listen(5)
except socket.error as msg:
print("Socket binding error: " + str(msg) + "\n" + "retrying...")
socket_bind()

my error:

Binding socket to port: 90
Traceback (most recent call last):
File "c:/ReverseShell/server.py", line 50, in
main()
File "c:/ReverseShell/server.py", line 47, in main
socket_bind()
File "c:/ReverseShell/server.py", line 21, in socket_bind
s.bind((host, port))
TypeError: an integer is required (got type str)

HI

how to upgrade javafx ??? i

Hey Bucky, I am receiving tremendous amount of knowledge through your python tutorials. So thank you for that. Since this is my first time using and learning python, I am facing an issue that I don't really understand. Maybe it has to do with the connection to the internet or packages not being installed.
The same issue occurred while learning the 'downloading image' tutorial as well. Could you please help me address what the issue is? Thank you again!
Error: (This occurs in my run window)
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 1318, in do_open
encode_chunked=req.has_header('Transfer-encoding'))
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 1239, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 1285, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 1234, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 1026, in _send_output
self.send(msg)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 964, in send
self.connect()
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/http/client.py", line 936, in connect
(self.host,self.port), self.timeout, self.source_address)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/socket.py", line 704, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/socket.py", line 745, in getaddrinfo
for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 8] nodename nor servname provided, or not known

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/Users/vineetovhal/PycharmProjects/YouTube/First.py", line 16, in
download_stock_data(goog_url)
File "/Users/vineetovhal/PycharmProjects/YouTube/First.py", line 6, in download_stock_data
response = request.urlopen(csv_url)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 223, in urlopen
return opener.open(url, data, timeout)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 526, in open
response = self._open(req, data)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 544, in _open
'_open', req)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 504, in _call_chain
result = func(*args)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 1346, in http_open
return self.do_open(http.client.HTTPConnection, req)
File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/urllib/request.py", line 1320, in do_open
raise URLError(err)
urllib.error.URLError: <urlopen error [Errno 8] nodename nor servname provided, or not known>

in the JAVAFX tuts Lesson 13 comboBox
while the video is 14... please change the 013 to 014

Dear , if possible please upload the source of HTML course.

What Happened to thenewboston.com, it's down since 3 months now.

Please are there source codes after 15th video of c programming tutorial. The source codes are quite beneficial for beginners.

public void start(Stage primaryStage) {
    window = primaryStage;

    //Button 1
    Label label1 = new Label("Welcome to the first scene!");
    Button button1 = new Button("Create Account");
    button1.setOnAction(e -> window.setScene(scene2));

    //Layout 1 - children laid out in vertical column
    VBox layout1 = new VBox(30);
    layout1.getChildren().addAll(label1, button1);
    scene1 = new Scene(layout1, 200, 200);

    GridPane grid = new GridPane();
    grid.setPadding(new Insets(10, 10, 10, 10));
    grid.setVgap(8);
    grid.setHgap(10);

    //Name Label - constrains use (child, column, row)
    Label nameLabel = new Label("Username:");
    GridPane.setConstraints(nameLabel, 0, 0);

    //Name Input
    TextField nameInput = new TextField("Bucky");
    GridPane.setConstraints(nameInput, 1, 0);

    //Password Label
    Label passLabel = new Label("Password:");
    GridPane.setConstraints(passLabel, 0, 1);

    //Password Input
    TextField passInput = new TextField();
    passInput.setPromptText("password");
    GridPane.setConstraints(passInput, 1, 1);

    //Login
    Button loginButton = new Button("Log In");
    GridPane.setConstraints(loginButton, 1, 2);

    //Add everything to grid
    grid.getChildren().addAll(nameLabel, nameInput, passLabel, passInput, loginButton);

    Scene scene2 = new Scene(grid, 300, 200);

    

    //Display scene 1 at first
    window.setScene(scene1);
    window.setTitle("Project");
    window.show();
}

it does not switch to the scene where i have my textfields, what can i do?

I can not find django

Can you provide the 'main.css' file for the Zurb Foundation tutorial files?
If there are any other such file missing could those be made available, as well?
Tnx

In the 74th tutorial, where i can download the images for animation

The Java beginners source codes are not complete.

At line 12 food is declared as an array of enough characters to store the string (including NUL terminator) "tuna".

At line 15, strcpy is instructed to store the string (including NUL terminator) "bacon" into that array, causing a buffer overflow.

Hi!
Java Intermediate missing source code from lesson 05 to lesson 36.

Hey Bucky please make video lecture for node js onwards 22

onAttach(Activity a) method is depreciated. Can you suggest how to code it with onAttach(Context c) which has replaced the method you recommend? It does work with the deprecated method but I would prefer to use the replaced context method since that will be the new standard.

a7.zip

when I lunch my application it show an error message saying : "MyAppName has stopped" on the device monitor, when I click "open app again" it says: "MyAppName keeps stopping".
any help!

Have learnt from you web for more that one year, so glad you share all source code here!

Thanks so much!

I have a question to the blocking interaction to the first window. I am using ubuntu with eclipse. And when i have the second window and try the click the first one, it is certainly blocked. But when i try click twice so i can get the access to the first one (but i still can't not click the button of the first window or close it). So the blocking don't work anymore. ???

Invalid input is disregarded, which causes undefined behaviour when the two numbers are added together.

Hi Bucky, your Node.js tutorial is awesome.

Is it possible for you to upload the last (tutorial 22) project source so we can play around it?
Thanks

Can you explain us, how we can send our added codes for merge your repo ?
Thank you, Bucky !

Where is the Xhtml sourcecode?

Hi

my JDK is 1.8-u102 and in want to remove all grid line (vertical & horizontal) from my JavaFX TableView , how i can do this with css ???

i found this css to remove grid line but not work :

1. -fx-table-cell-border-color: transparent; , error -> Unknown property: "-fx-table-cell-border-color"
2. -fx-grid-lines-visible: false; , error -> "-fx-grid-lines-visible" is not supported by the given selectors

what's wrong here ??? i use the last version of jdk (1.8-u102) !!!!!!

Hey bucky,
Do you have any document to do project on pYthon.
Thanks,
Dinesh.

I am using the latest available Python 3.7, Please help me in resolving this issue and make my code run

from urllib import request

goog_url = http://real-chart.finance.yahoo.com/table.csv?s=GOOG&d=2&e=8&f=2015&g=d&a=2&b=27&c=2014&ignore=.csv

def download_stock_data(csv_url):
response = request.urlopen(csv_url)
csv = response.read()
csv_str = str(csv)
lines = csv_str.split("\n")
dest_url = r'goog.csv'
fx = open(dest_url, "w")
for line in lines:
fx.write(line + "\n")
fx.close()

download_stock_data(goog_url)

After running this above code seeing following errors
C:\Users\Pritam\PycharmProjects\Ganesha_First\venv\Scripts\python.exe C:/Users/Pritam/PycharmProjects/Ganesha_First/bucky.py
Traceback (most recent call last):
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\urllib\request.py", line 1317, in do_open
encode_chunked=req.has_header('Transfer-encoding'))
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\http\client.py", line 1229, in request
self._send_request(method, url, body, headers, encode_chunked)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\http\client.py", line 1275, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\http\client.py", line 1224, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\http\client.py", line 1016, in _send_output
self.send(msg)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\http\client.py", line 956, in send
self.connect()
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\http\client.py", line 928, in connect
(self.host,self.port), self.timeout, self.source_address)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\socket.py", line 707, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\socket.py", line 748, in getaddrinfo
for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 11001] getaddrinfo failed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:/Users/Pritam/PycharmProjects/Ganesha_First/bucky.py", line 16, in
download_stock_data(goog_url)
File "C:/Users/Pritam/PycharmProjects/Ganesha_First/bucky.py", line 6, in download_stock_data
response = request.urlopen(csv_url)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\urllib\request.py", line 222, in urlopen
return opener.open(url, data, timeout)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\urllib\request.py", line 525, in open
response = self._open(req, data)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\urllib\request.py", line 543, in _open
'_open', req)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\urllib\request.py", line 503, in _call_chain
result = func(*args)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\urllib\request.py", line 1345, in http_open
return self.do_open(http.client.HTTPConnection, req)
File "C:\Users\Pritam\Desktop\Dhiraj_techdocs\lib\urllib\request.py", line 1319, in do_open
raise URLError(err)
urllib.error.URLError: <urlopen error [Errno 11001] getaddrinfo failed>

Process finished with exit code 1

The python TKinter source code has not been uploaded. Is it possible to upload the files?

regards

Steve W

I'm testing python web crawler chapter 25-27, but
https://buckysroom.org/trade/ web page does not exist anymore.
I've been looking for similar web sites which has pages, but couldn't find it yet.
Could you let me know a good web site so that I can test the code in github?

No html 5 source code

error: cannot find symbol
primaryStage.setTitle("Title of the Window");
symbol: variable primaryStage
location: class JavaFXApplication1

it does not recognize the "primarystage" what can i do

I have written the code in lesson 9 just like described, but I am getting a question mark at the end of my name.
#include <stdio.h>
#include <stdlib.h>

int main()
{

int age;
int currentYear;
int birthYear;

currentYear = 2019;
birthYear = 1989;
age = currentYear - birthYear;

printf("Razvan is %d years old \n", age);

char name[6] = "Razvan";
printf("My name is %s \n", name);

name[3] = 'w';
printf("My name is %s \n", name);

char food[] = "bacon";
printf("The best food is %s \n", food);

strcpy(food, "sarmale");
printf("But not after %s \n", food);



return 0;

}

I am following the youtube tutorial on Slick 2D java
Can't find the source code yet

If two integers are added and the result of adding them causes integer overflow, then the behaviour is undefined.