Introduction Creating a unique identifier for an object is an important task for many applications. It is important to ensure that the identifier is not random, as this can lead to confusion and errors. In this article, we will discuss how to create a unique identifier for an object that is not random. We will … Read more
Introduction The GetPixel() method is a Windows Graphics Device Interface (GDI) function that is used to retrieve the color of a pixel from a device context. When the GetPixel() method is used to retrieve the color of a white pixel, it will return a value of 0x00FFFFFF. This value is a hexadecimal representation of the … Read more
Introduction Invalid syntax is a common error that occurs when a programming language is not written correctly. It is usually caused by a missing or incorrect character, such as a missing semicolon or a misplaced quotation mark. When this error occurs, the compiler or interpreter will usually highlight the area where the error occurred, making … Read more
Here is semi-working and working code. Semi-working $ cat x1.pl | so #!/usr/bin/env perl use strict; use warnings; my $a = “$192.168.1.1”; print “$a\n”; $a =~ s/\$//; print “$a\n”; $ perl x1.pl | so Use of uninitialized value $192 in concatenation (.) or string at x1.pl line 5. .168.1.1 .168.1.1 $ Working $ cat x2.pl … Read more
Introduction When it comes to programming, it can be tempting to think that you can just copy and paste a method from one program to another and expect it to work. Unfortunately, this is not the case. There are a variety of reasons why you can’t just paste a method to make it work, and … Read more
Corrected (?): def parse(data): print(data) def get_set(json_url): url = json_url response = urllib.urlopen(url) data = json.loads(response.read()) s_code=”0″ print data s_code = data[“statusCode”] print s_code seconds_waiting = 10 if s_code == 200: url = json_url response = urllib.urlopen(url) data = json.loads(response.read()) parse(data) elif s_code != 200: print “waiting ” + str(seconds_waiting) + ” second(s)…” time.sleep(seconds_waiting) get_set(json_url) … Read more
Introduction This article provides a solution to the problem of extracting coordinates from a string. It explains the process of using regular expressions to parse the string and extract the coordinates. It also provides an example of how to use the regular expression to extract the coordinates from a given string. Finally, it provides a … Read more
The return keyword is an important part of any function, whether it is a main function or a user-defined function. It is used to return a value from a function to the calling program. The return keyword is used to indicate the end of a function and to return a value to the calling program. … Read more
This question is related to an error regarding the use of std::istream and int x. This type of error can be caused by a variety of issues, such as incorrect syntax, incorrect data types, or incorrect usage of the std::istream library. In this post, we will discuss the possible causes of this error and how … Read more
This article provides a solution to the issue of HTML buttons not reacting to JQuery. This issue can be caused by a variety of factors, such as incorrect syntax, incorrect HTML structure, or incorrect JQuery code. This article will provide a step-by-step guide to troubleshooting and resolving this issue. Additionally, it will provide some tips … Read more
Introduction If you are looking for a way to get the Saturday date from a Calendar in Java for a specified week, then you have come to the right place. In this article, we will discuss how to use the Calendar class in Java to get the Saturday date for a specified week. We will … Read more
Introduction If you are looking for a way to get substring items within an ArrayList in Java, then you have come to the right place. In this article, we will discuss how to get substring items within an ArrayList in Java. We will look at different methods of doing this, such as using the subList() … Read more
Introduction If you are a developer, you may be wondering how to check if a user has installed an app on their device. This is an important question to consider, as it can help you determine the success of your app and how to best reach your users. In this article, we will discuss how … Read more
Introduction The history.go(0) command in JavaScript is used to reload the current page. It is a useful command for refreshing the page without having to manually reload it. However, if you are looking for the equivalent command in PHP, there is no direct equivalent. This article will discuss some of the alternatives to history.go(0) in … Read more
Introduction The C++ vector is a powerful container that allows for dynamic memory allocation and efficient data manipulation. However, it is possible to encounter errors when attempting to use the vector, such as the “Size of C++ vector is invalid” error. This error occurs when the size of the vector is not valid, either because … Read more