T *t = new T; // ^^^^^ This is a declaration of t of type T*. It is being initialized by the expression after the =. The entire new T part is the new-expression in this initializer. The new-expression causes memory to be allocated for an object of type T and then that object is … Read more
Looking it up, the thing you’re using (“Ready to program Java”) comes with Java 1.4. It’s ancient. So … no, @Override isn’t allowed, and also you can not set the layout directly on the JFrame. See: http://docs.oracle.com/javase/1.4.2/docs/api/javax/swing/JFrame.html#setLayout(java.awt.LayoutManager) By default the layout of this component may not be set, the layout of its contentPane should be … Read more
Simple: $(‘div:first’).remove() With check if ($(‘div’).length) > 50) { $(‘div:first’).remove(); } 1 solved Delete first DIV tag in a html document [closed]
Lets assume that the inner loop actually does something. FredrikRedin and niculare are, of course, correct, that the number of inner loop executions will be the same. Given that this is the case, the second example is preferred (slightly) because the second example has to set up the inner loop ten times, while the first … Read more
The line: a[i] = strtok(s,” “); sets a[i] to a pointer within the string, which you’re modifying and which may eventually have the temporary NUL characters (from strtok) removed. You may want to try: a[i] = strdup (strtok (s,” “)); instead. Let me explain further. Say we have the command (as it exists in memory): … Read more
$id = $array[‘id’]; unset($array[‘id’]); foreach($array as $k=>$v) { $array[$k][‘id’] = $id; } solved Arranging array in a proper format [closed]
You convert the user’s input to a string (str(input(‘What …’))) but compare it to integers in inputCheck. Since there is no else path in inputCheck, nothing happens when you enter a “valid” choice. Also, if you’re using Python 2, using input is not what you want, raw_input is the way to go (see, for example … Read more
You’ve given very little in the way of details. I’ll provide an answer here that’s as simple as possible: Use SSD If you’re not already using SSD that’s probably the issue. Conventional hard drives are terrible at random I/O and will bog down on occasion when too busy to service requests in a timely manner. … Read more
DateTime.Today.Month has a return type of int, but you’re checking against a char value type. This check also returns true everytime as every month value is less than 12 or greater than 6 months. Rewrite this to be: int todayMonth = DateTime.Today.Month; if(todayMonth >= 6 && todayMonth <= 12) Edit: To check if the date … Read more
There are two issues: There is no = in between the variable continue and input() on line 21. You cannot use continue as a variable name, as it is a keyword, so basically you need to replace all those instances with another variable name. solved I am learning python and following along with a tutorial … Read more
Explanation Your error message is pretty straightforward, carefully read it: Error on line 12: constructor Game in class Game cannot be applied to given types; return r.toString() + “\n” + super.play(new Game()) + “\n”; ^ required: java.lang.String found: no arguments reason: actual and formal argument lists differ in length So you are calling new Game(), … Read more
convert it into json and try it. hope that works for you. 4 solved how to pass array in ajax call using php
Breaking down the problem: You need to parse the user input and manipulate the DOM accordingly First you need to do something like (you’d need to modify this to fit you case) : $(‘#someTextInputWithThisID’).change(function() { var textualValue = $(this).val(); var numericValue = parseInt(textualValue); if (!isNaN(numericValue)) modifyDOMWithNumber(numericValue); }) Where, in modifyDOMWithNumber you’d have your code to … Read more
Basically, you read the file to variable, then fill with value of this variable, and then on form submit update DB value with one from textarea. Though, you have to watch encoding changes or text can be screwed. For exact functions, as it is PHP, you can look at http://www.php.net/manual/en/ , it has nice search, … Read more
The main issue is you need to inherit template class this way: template<class T> class rectangle : public polygon<T> // polygon is a template, you need to make ^^^ // rectangle from a concrete polygon type 1 solved Templated polymorphism is not working [closed]