[Solved] Why can I convert from int ** to int * in the case of the two-dimensional array, but not in the case of the array of pointers

You might want to learn how these objects are laid out in memory: int array[][3] = { {1,2,3}, {4,5,6}, {7,8,9} }; int *p_array = (int *) array; This creates an object array of type int[][3] in memory (in this case stack) physically laid out in a hypothetical (16-bit word size) architecture as: array 0x8000: 0x0001 … Read more

[Solved] TransformException: java.util.zip.ZipException: duplicate entry: android/support/v4/widget/ExploreByTouchHelper.class

Open your system command prompt/terminal -> Go to your Project folder path (root project folder ) -> Execute following command : command :- gradlew cleanor ./gradlew clean Make sure that all your gradle dependencies are of same version. -> Example :- your appcompat and recyclerview dependencies should have same version. -> Change your gradle dependencies … Read more

[Solved] PHP: Breaking a string into multiple lines and manipulating each line separately [closed]

Simply use the explode() function with PHP_EOL constant as delimiter: $lines = explode(PHP_EOL, $original); After you can iterate the returned array to parse lines, for example: foreach ( $lines as $line ) { echo ‘<span>’.$line.'</span>’; } 3 solved PHP: Breaking a string into multiple lines and manipulating each line separately [closed]

[Solved] jQuery – on click not working for element filtered by dynamic CSS

You selector is incorrect, remove space to convert it to element with class selector. $(“a.SiteDown”).on(‘click’, function(e){ //…. }); As of now its descendant selector. As you are approach when manipulation selector, use Event Delegation using on(). $(document).on(‘click’, “a.SiteDown”, function(e){ //…. }); In place of document you should use closest static container. 3 solved jQuery – … Read more

[Solved] How to make function arguments optional? [duplicate]

Maybe this will help. In your case, def action(file1, file2, behavior=defaultBehavior): return behave(file1, file2) is okay. But of course, if an argument is passed into the “behave” parameter, you should take care of it in your function. For instance, if you called action(“somefile”, “anotherfile”, customBehavior) then you’ll want something like the following to deal with … Read more

[Solved] Why cannot I format the font color as white

You have style overriding yours so you can be more specific like this : a.accordionTitle, a.accordion__Heading { background-color: #00008B; text-align: center; font-weight: 700; padding: 2em; display: block; text-decoration: none; color:white; -webkit-transition: background-color 0.5s ease-in-out; transition: background-color 0.5s ease-in-out; border-bottom: 1px solid #8000000; } Or use important like this : .accordionTitle, .accordion__Heading { background-color: #00008B; text-align: … Read more

[Solved] In C ,we use %x.ys for string manipulation. What it will be in C++?

The std::setw() I/O manipulator is the direct equivalent of printf()‘s minimum width for strings, and the std::left and std::right I/O manipulators are the direct equivalent for justification within the output width. But there is no direct equivilent of printf()‘s precision (max length) for strings, you have to truncate the string data manually. Try this: #include … Read more

[Solved] What happens to an object during a pre-increment operation?

The pre-increment operator method returns a new object. Which invokes a constructor and, shortly later, destructor. Cls operator++(){i++; return *this;} ^^^ return by value. Means you need to be able to copy construct “Cls” Note you would normally write this as: Cls& operator++(){i++; return *this;} ^^^ To return the object by reference (and thus avoid … Read more

[Solved] When to use $this and when simple variable

In OOP:$this->name is property of the object which is defined by the class and is accessible globally within the object.$name is variable used inside the class method and is accessible locally only within the object method (a function) Very briefly: class myClass{ private $name = “record.log”; function myMethod(){ $name=”this exists only in the method myMethod()”; … Read more

[Solved] Sorting arrays manually in php without using sort() [closed]

here is the solution using bubble sort <?php $item = array(2, 1, 4,3,5,6); $item_length = count($item); for ($counter = 0; $counter < $item_length-1; $counter++) { for ($counter1 = 0; $counter1 < $item_length-1; $counter1++) { if ($item[$counter1] > $item[$counter1 + 1]) { $temp=$item[$counter1]; $item[$counter1]=$item[$counter1+1]; $item[$counter1+1]=$temp; } } } //you can print the array using loop print_r($item); … Read more

[Solved] need help to do a mysql query [closed]

Assuming there are no PK/Unique constraint involving Staffid and branchid, follows: select branchid from table group by branchid order by count(staffid) desc limit 5 Guess this will do. 2 solved need help to do a mysql query [closed]