[Solved] Basic Python variable function not working? [closed]

You are using the variable before it declaration. Carry your variable declaration at the top of the first print function For Example boy_name = “Bobby” print(“there was a boy named ” + boy_name + ” “) print(“there is a boy named timmy”) solved Basic Python variable function not working? [closed]

[Solved] C’s strange pointer arithmetics [closed]

As pointed out by others, this statement suffers from undefined behavior: *(&x+5) += 7; Memory address &x+5 is outside the bounds of variable x. Writing to that address is a very bad idea. OP’s code sample exploits certain C compiler implementation details. Probably educational; it can be used to demonstrate how hackers can exploit missing … Read more

[Solved] How a fread function work? [closed]

To print all bytes in an int? Remember that an int is 32-bit, which is four bytes. Reading it into a char buffer makes it easier to access those four bytes in the int. Edit: Little explanation of the int type… Lets say you have an int: int someIntValue = 0x12345678; This is stored in … Read more

[Solved] Display Alert if tableView has no Results

You cannot check the row count in viewDidAppear because an asynchronous NSURLConnection is used to fetch the JSON data that populates the table view. The correct way is to call reloadData in connectionDidFinishLoading, after you have updated your data source with the response from the URL request. At that point you know if the number … Read more

[Solved] C read file in byte chunks [closed]

Well if you can’t use man, why not just search for it? Anyway you are using it wrong. If you want to read it by chunks you should do it like this // consider that we allocated enough memory for buffer // and buffer is byte array ssize_t r = 0, i = 0; do … Read more

[Solved] How to sort a list and put it in absolute value

You can use the map and abs functions to accomplish this: In [1]: sorted(map(abs, lista)) Out[1]: [1, 2, 3, 5, 7, 8] To do this with the code you wrote, you can # The list defined above lista = [a,b,c,d] # Sorted from least to greatest absolute value sorted_abs_list = sorted(map(abs, lista)) # Sorted from … Read more

[Solved] I want to access another server database in PHP

Just read errors and correct it.. <?php $server2 = ‘192.168.1.211’; $con = mysqli_connect($server2,’root’,’password’,’vvani’); // here, $server2 is variable, not constant if (mysqli_connect_errno()) { echo “Failed to connect to MySQL: ” . mysqli_connect_error(); } 2 solved I want to access another server database in PHP

[Solved] The system is unable to find the requested action “name1”. in yii how to solve it [closed]

NameFormController should extend from Controller, not Controlle In your NameFormController, add the function: public function actionName1() { echo ‘action Name1()’; } Don’t forget to update the access rules to allow access to your new action: public function accessRules() { return array( array(‘allow’, ‘actions’ => array(‘index’, ‘view’, ‘name1’), ‘users’ => array(‘*’), ), array(‘deny’, ‘users’ => array(‘*’), … Read more