As you have not shown your whole program, so its hard to tell where is the error, but it might be in the default constructor of the doctor class. Anyways here is the code that you can refer. It will give the correct output. Here is the link you can refer to see the execution … Read more
As long as you’re bothered with the for loop syntax, for ( ; lastheight < height ; lastheight++) is perfectly valid, as long as lastheight is defined and initialized previously. Quoting C11, chapter ยง6.8.5.3 for ( clause-1 ; expression-2 ; expression-3 ) statement […] Both clause-1 and expression-3 can be omitted. An omitted expression-2 is … Read more
You are calling public double getLatitude() from your GPS class, however the _location variable is not initialized hence you get the NullPointerException. Prior calling getLatitude() try calling the public Location getLastKnownLocation() from your GPS class. This call will initialize the _location variable. 0 solved Android Null object reference on location [duplicate]
Introduction Finding the timestamp values between two timestamp records can be a difficult task. However, with the right approach, it can be done quickly and easily. In this article, we will discuss how to find all the timestamp values interval by each minute between two timestamp records. We will discuss the different methods that can … Read more
Your PDO constructor is wrong. You are not declaring the database to which the PDO instance should connect to. $db = new PDO(‘mysql:host=localhost;root’, ‘test’, ”); The DSN should have the database name and the host name. You have root at the end of it which should not be there. The line above should be like … Read more
Introduction If you are looking for a way to create four random defined percentages that sum to 1, then you have come to the right place. In this article, we will provide a step-by-step guide on how to generate four random defined percentages that sum to 1. We will also discuss the importance of using … Read more
I did it with the following steps: 1) Created and opened, an SSIS project 2) Added a dataflow task 3) Created a flat file source 4) Created two step transform: 4a) Data Transformation to a dt_decimal 4b) Derived Column with the Expression: decColumn0 / 100 5) Ole DbDestination 1 solved SSIS 2014 issue with currency … Read more
See this. I had a datframe and it showed me like this, but the datframe was one intact data frame… solved Merges and joins in pandas
Introduction If you are looking for a way to use Livestream player in your iOS or Android app, you have come to the right place. In this article, we will discuss how to use Livestream player in your app and provide some tips and tricks to make the process easier. We will also discuss the … Read more
Using the new syntax, that would translate to: <Grid ColumnDefinitions=”*, 50″> For the complete specs on the new syntax, you can read this: https://github.com/microsoft/microsoft-ui-xaml/issues/673 Basically, <ColumnDefinition /> is the equivalent of <ColumnDefinition Width=”*” /> (* is the default value for the Width property). The width of a column can be expressed in 3 ways: Auto … Read more
Introduction If you are looking for a way to split a string into an array of desired strings in Swift, then you have come to the right place. In this article, we will discuss how to use the split() method to break a string into an array of desired strings. We will also discuss some … Read more
Introduction This error occurs when the operator != (not equal to) is used with incompatible data types. The operator != is only valid for comparing two values of the same data type. In this case, the operator != is being used to compare a boolean value with an integer value, which is not allowed. To … Read more
I found this great shuffle function from this answer: function shuffle(array) { var currentIndex = array.length, temporaryValue, randomIndex; // While there remain elements to shuffle… while (0 !== currentIndex) { // Pick a remaining element… randomIndex = Math.floor(Math.random() * currentIndex); currentIndex -= 1; // And swap it with the current element. temporaryValue = array[currentIndex]; array[currentIndex] … Read more
You only set content_type when your form is valid: if comment_form.is_valid(): # … content_type = ContentType.objects.get_for_id(content_type_id) # … else: print(comment_form.errors) So when comment_form.is_valid() is false, the variable is never set. You have the same issue with object_id_data and content_data. Perhaps you need to re-think what should be returned when the form is not correct? It … Read more
Introduction VBA is a powerful tool for automating tasks in Microsoft Excel. One of the most useful functions in VBA is the VLookup function, which allows you to quickly look up a value in a table and enter it into a cell. In this article, we will discuss how to use the VLookup function in … Read more