float has less precision than double, which would be the default type used for floating point literals. Since 6.7 cannot be represented with a finite number of binary digits, the less precise float representation does not equal the double representation. solved Testing for float equality in C [duplicate]
You should never use regex to parse html, you need html parser. Here is an example how you can do it. You need to add this reference in your project: Install-Package HtmlAgilityPack The code: static void Main(string[] args) { string html = @”<!DOCTYPE html> <html> <body> <h1>My First Heading</h1> <p>My first paragraph.</p> <table> <tr> <td>A!!</td> … Read more
You need to have some kind of storage on your backend side, which will map RFID IDs to some website. Then you could redirrect user to that website with HTTP codes 301 or 302. Here is a pseudocede example for client and server: # Client rfid_id = get_rfid_id() make_request_to_server(rfid_id) # Server storage = { ‘12345’: … Read more
Go here: http://converter.telerik.com and convert the C# to VB.Net: C#: x => (x == NEWLINE) VB.Net: (Function(x) x = NEWLINE) 5 solved Convert Array.FindIndex from C# to VB [closed]
Pass in as an extra: instead of: Intent i = new Intent(getActivity().getApplicationContext(),Upvalence.class); startActivity(i); you should pass in the name Intent i = new Intent(getActivity().getApplicationContext(),Upvalence.class); i.putExtra(“string”, SlectedName); startActivity(i); Then, on your Upvalence activity: @Override protected void onCreate(@Nullable Bundle savedInstanceState) { Bundle arguments = this.getIntent().getExtras(); String yourString = arguments.getString(“string”); } solved Pass Data from Dialog to new … Read more
An ArrayIndexOutOfBoundsException should generally not be handled as it is considered as a programming error. However, if you want to do this.. just write it the more natural way : try { for(row=row-1;row>=0;row–) { if(tablero[col1][row]==”.”) { tablero[col1][row]=”X”; break; } } } catch (ArrayIndexOutOfBoundsException ex) { // do something } However, from your edited message, it … Read more
Something like this? $query .= “WHERE 1=1 AND e.id=p.employee_id AND p.office_id=o.id AND (o.office_name=””.mysqli_real_escape_string($officeName).”” OR o.office_name=””.mysqli_real_escape_string($firstName).”” OR o.office_name=””.mysqli_real_escape_string($lastName).””) “; I used mysqli_real_escape_string() here as an example, you should use the correct and necessary precautions to avoid SQL injection in your system. 5 solved Build dynamic WHERE clause in mySQL
Instead of reading val1 and val2 directly from stdin, read a line of text. If the line does not start with |, extract the numbers from the line using sscanf or istringstream. If the line starts with |, break out of the while loop. #include <stdio.h> #include <iostream> using namespace std; const int LINE_SIZE = … Read more
Turns out it’s easier to do df1.except(df2) and then join the results with df1 to get all the duplicates. Full code: def exceptAllCustom(df1: DataFrame, df2: DataFrame): DataFrame = { val except = df1.except(df2) val columns = df1.columns val colExpr: Column = df1(columns.head) <=> except(columns.head) val joinExpression = columns.tail.foldLeft(colExpr) { (colExpr, p) => colExpr && df1(p) … Read more
Your query should look like this: $insertData = “INSERT INTO facebook (fdId, fullName, email, dob, location, gender, postId) VALUES (‘”.$fbId.”‘,'”.$fullName.”‘,'”.$email.”‘,'”.$new_date.”‘,'”.$location.”‘,'”.$gender.”‘,'”.$postId.”‘)”; mysql_select_db(‘noskunk1_facebook’,$vdb); $result = mysql_query($insertData); if ($result)) { echo “New record created successfully”; } else { echo “Error: ” . $insertData . “<br>” . mysql_error($vdb); } but consider using pdo 3 solved error mysql_query() expects parameter … Read more
$(this) returns a jQuery object, so it doesn’t make sense to ask how to implement this outside of jQuery. What you can implement is the addClass function, which you can easily do using DOM: this.className += “animated doneAnimated” + (pageLoaded ? ” fadeInUp” : “”)); That way you use vanilla javascript to alter classes. However, … Read more
NSString *trimmedDOB=@”1992-11-15″; NSDateFormatter *format = [[NSDateFormatter alloc] init]; //Set your input format [format setDateFormat:@”yyyy-MM-dd”]; //Parse date from input format NSDate *dateOfBirth = [format dateFromString:trimmedDOB]; //Set your output format [format setDateFormat:@”MM-dd-yyyy”]; //Output date in output format NSLog(@”DATE IS %@”,[format stringFromDate:dateOfBirth]); 0 solved NSDateFormatter returning nil with dateFromString
There are a lot of issues in your code that will result in problems: Your constructor Macierz(int _x, int _y) doesn’t work like you think it does. Only wiersze[0] will be valid after it finishes and any non-zero index will access unknown memory. The issue is really with your design of your 2D matrix class. … Read more
No. After running the following code: Date birthDate = (…say Apr 20th 0300hrs) Calendar cal = Calendar.getInstance(); cal.setTime(birthDate); cal.add(Calendar.HOUR, -6); you are guaranteed that cal is set to six hours before ‘Apr 20th 0300hrs’, but not that it is set to ‘Apr 19th 2100hrs’. 4 solved Subtract 6 hours from an existing Date object java … Read more
The error message says it all: xlwings requires an installation of Excel and therefore only works on Windows and macOS. To enable the installation on Linux nevertheless, do: export INSTALL_ON_LINUX=1; pip install xlwings You might be using a package in your app named xlwings which is built to be used on Windows and Mac but … Read more