You can’t make HTML directly interacting with database. You should create server-side application, which answer queries generated by HTML forms, JS queries, etc. I am PHP developer, I like this language, so I recommend you using it in your solution. You can read about connecting PHP to MySQL database here: http://www.w3schools.com/php/php_mysql_connect.asp There you have basic … Read more
This should work for you: <?php //Xml stuff $xml = simplexml_load_file(“file.xml”); //Database stuff $hostname = “localhost”; $username = “root”; $password = “”; try { //DB Connection $dbh = new PDO(“mysql:host=$hostname;dbname=dbname”, $username, $password); $dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); echo “Connected to Database<br/>”; foreach($xml->products->product as $data) { $sql = “INSERT INTO XML_FEED (shop, product_id, product_name, product_link, product_image, product_category, product_price_with_vat) VALUES … Read more
Firstly, declare some variables to work with for your test. Integer userScore=0; Integer totalScore=0; The percentage is userScore/totalScore*100. To add these up throughout the test, each of your questions should have something like this in them. if (answerIsCorrect) { userScore++; } totalScore++ To get the percentage, you just need to use your variables that have … Read more
It seems that the issue was that I was trying to pass the wrong data type into the parameter- it was expecting a ‘CHeloData’, but I was trying to give it a ‘CCoordinate’. solved c++ error: term does not evaluate to a function taking 1 arguments [closed]
It is hard (if not impossible) to label an heuristic as “best”. One idea I have in mind is evaluate the heuristic for the current state as the maximum value of all the tiles at this state. And then, that with the higher value is supposed to be better (“closer”) to the goal. And it … Read more
Need to put the servlet.jar in your CLASSPATH when you compile. The servlet.jar is part of Tomcat. You’ll probably find it in servlet/lib on version 5.5. You should know how to use -classpath option on javac.exe. You’ll probably find that there are other JARs missing as well. As you get compilation errors, keep finding the … Read more
In the first for loop. Do not put i <= n but i < n and the space will dissapear. Try to figure out yourself why this is. Correctly formatted (also removed the input scanner line). public class series { public static void main (String args[]){ int n=5; if((n>=1 && n<=9)){ for(int i=0;i<n;i++){ //spacing logic … Read more
So, it turns out that the problem was with declaring the array static in the class. Apparently what I actually wanted was to declare the variable but create it in the initialization function. I had tried this earlier, but the compiler choked and I thought that there was a problem with doing it this way. … Read more
Revised first version 🙂 const bt_Nwline = document.getElementById(‘New-Line’) , xForm = document.getElementById(‘form-X’) , wTable = xForm.querySelector(‘table’) , baseLine = wTable.querySelector(‘thead tr:nth-of-type(3)’) , tBody = wTable.querySelector(‘tbody’) , tPayout = wTable.querySelector(‘tfoot td:nth-of-type(2)’) ; xForm.onsubmit = e=>e.preventDefault() // disable form submit ; xForm.onreset =_=>{ tPayout.textContent=”0.00″ } ; function betCalculator() { let bet = xForm.betAmount.valueAsNumber || 0 , odds … Read more
You have to use 2 joins to link these 3 tables. INNER JOIN means, that only those tuples are listed, for which an correct tuple exists in every table. Students without subjects or wrong subject_ids will not be listed. Keep in mind, that an student, which visits X subjects will also listed X times. SELECT … Read more
you need to fetch all the products in one query and then process them to build the tree. You cant eager load it the traditional way. Original solution from Formatink public function products($projectId) { $products= Product::where(‘project_id’, $projectId)->get(); $products_by_id = collect(); foreach ($products as $product) { $products_by_id->put($product->id, $product); } foreach ($products as $key => $product) { … Read more
tl;dr It Just Doesn’t Matter. The only case where it would make any difference is if there was lots of extra data pulled in. The extra overhead needed to be “detectable” over all the other network/disk/processor factors will vary: “Try It And See”, or, run a performance analysis. Also, even if there were additional columns, … Read more
Really? Hashtable MyHashTable = new Hashtable(); MyHashTable.Add(1, “word”); MyHashTable.Add(“word”, 12); // to access 12 int MyInt = (int)MyHashTable[“word”]; 3 solved how build a hash table stored object in C#?
Do something like this >>> import os >>> for root, subFolders, files in os.walk(‘/tmp’): … for f in files: … if len(f) < 5: continue … newf = f[:-5]+f[-5].lower()+f[-4:] … print “changing”,f,”to”,newf … but looks like you want character before extension instead of 5 char? in that case why not just split the extension from … Read more
java.lang is the package, which isn’t needed with the correct import statement. System is a class in the java.lang package. out is a static public field (requires no bound instance, like a global variable) in the System class which has type PrintStream. A PrintStream adds functionality to another output stream, namely the ability to print … Read more