methods

问题 Today I ran into a scenario where I have to create a method that share the same name, params count and params types with existent one, Something like this: public static Department GetDepartment(string departmentName) { //LOGIC } public static Department GetDepartment(string employeeID) { //LOGIC } at first glance I just said why not to name it with a different name and get things done, but I couldn't! I do want to maintain the readability of my code i'm working on, I want it to be overloaded

问题 I'm writing a relatively simple Python script which supports a couple of different commands. The different commands support different options and I want to be able to pass the options parsed by argparse to the correct method for the specified command. The usage string looks like so: usage: script.py [-h] {a, b, c} ... script.py: error: too few arguments I can easily call the appropriate method: def a(): ... def b(): ... def c(): ... if __name__ == "__main__": parser = argparse.ArgumentParser(

问题 I am in need of a method to convert GregorianCalendar Object to Unix Time (i.e. a long). Also need a method to convert Unix Time (long) back to GregorianCalendar Object. Are there any methods out there that does this? If not, then how can I do it? Any help would be highly appreciated. Link to GregorianCalendar Class --> http://download.oracle.com/javase/1.4.2/docs/api/java/util/GregorianCalendar.html Thanks. 回答1: The methods getTimeInMillis() and setTimeInMillis(long) will let you get and set

问题 I recently started learning annotations and I want to know can a method annotation handle errors thrown by this method? Or to know the code of this exception/error. P.S. if it can, next step is to retry this method in dependence of error code P.S.S. I know about spring Retryable, but i can't use it. I tried to find info about my question in the google, but i didn't find. 回答1: Actually,One of the basic things in OOP is IoC(Inversion of Control).We need to care this approach when building a

问题 I need to pass an object array at a certain position to an int. For example: private Object[][] singleplay = {{"#","Name","Score"},{"1","----------","10"},{"2","----------","20"}}; private int getnum1; private int getnum2; Here, I need to take the third position of the object array of each row. Example: getnum1 = singleplay[1][2] // So getnum1 will be 10 getnum2 = singleplay[2][2] // getnum2 will be 20. So I need the Int from the 3rd "x" position of each 2d "y" position . 回答1: I think this

问题 In defining variable of a list object, for example: x = [1,2,0.2,3,4] y = x x.sort() I would expect that y is still equal to [1, 2, 0.2, 3, 4] , but it does not. The value of y changed as x changed. To counter this, I found that using y = x.copy() can preserve the value in the first line. On the other hand, another example : x = 5 y = x x = 4 from this the value of y is still 5 , it does not change as x change. My question : is this due to the design in list's class, or there is another

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 5 years ago . It's returning the second element in the array instead of the smallest number's index I already took the size and all that stuff, this is just the method public static int FindSmallest (int [] arr1){//start method int index = arr1[0]; for (int i=1; i<arr1.length; i++){ if (arr1[i] > index ){ index

问题 I am trying to upload a local file to webserver using HTML POST method and PHP. this is my php code: <?php if (isset($_POST["submit"])) { $updir = "/var/tmp/"; $upfile = $updir.basename($_FILES['rawexcel']['name']); if(is_uploaded_file ($_FILES ["rawexcel"]["tmp_name"])) { move_uploaded_file ($_FILES["rawexcel"]["tmp_name"], $upfile); } else {echo "error uploading file ".$upfile;} } else {echo "not isset post method";} ?> and HTML code is: <div class="container" id="upl"> <h4> Upload files<

问题 What is the appropriate way to call a method with an action, and what should the method itself look like for passing a CGPoint parameter? I've tried to look up examples online without much luck, so I've been pretty much guessing. What I have tried is this for calling it: CGPoint spriteCoord = saveStation.sprite.position; id a1=[CCMoveTo actionWithDuration:.4 position:ccp(saveStation.sprite.position.x,saveStation.sprite.position.y)]; id actionSaveStationReaction = [CCCallFuncND

问题 I'm quite new to java and one of our assignments requires me to create a binary tree containing nodes with int values. My professor wants us to use one class containing the main method. I applied two recursive methods, one to insert a node and one to display existing nodes. Whenever I run my code however, the console only displays the most recent node that I entered. Is there something wrong with the methods I used? This is what I have so far: import java.util.Scanner; public class node {