methods

问题 my Task is to make an implementation of Conway's Game of Life. Therefor I need to create the class GameMap. In this class I will initialize an 2D Array. Therefor I use those two methods. private static Cell[][] buildCellArray(int width, int height){ Cell[][] cellArray = new Cell[width][height]; int i; int j; for(i = 0; i < width; i++) { for(j = 0; j < height; j++) { cellArray[i][j] = new Cell(); } } return cellArray; } public GameMap(int sizeX, int sizeY) { buildCellArray(sizeX, sizeY); } Now

问题 Using amazon deequ library I'm trying to build a function that takes 3 parameters, the check object, a string telling what constraint needs to be run and another string that provides the constraint criteria. I have a bunch of checks that I want to read from a mysql table. My intention is to iterate through all the checks that I get from the mysql table and build a check object using the function I described above and run the checks on a source dataframe Here a example of the amazon deequ

问题 Suppose I have a class like this: class MyClass { method data-is-valid { return self!get-data ~~ m{^From}; } method !get-data { return 'From Internet'; } } where !get-data method gets some data from Internet. Is it possible to mock that method so that it returns my own hardcoded data so I can test the module without connecting to the Internet? Ideally, the solution should not modify the definition of the class in any way. NOTE: A similar question exists regarding unittesting subroutines of

问题 Suppose I have a class like this: class MyClass { method data-is-valid { return self!get-data ~~ m{^From}; } method !get-data { return 'From Internet'; } } where !get-data method gets some data from Internet. Is it possible to mock that method so that it returns my own hardcoded data so I can test the module without connecting to the Internet? Ideally, the solution should not modify the definition of the class in any way. NOTE: A similar question exists regarding unittesting subroutines of

问题 Suppose I have a class like this: class MyClass { method data-is-valid { return self!get-data ~~ m{^From}; } method !get-data { return 'From Internet'; } } where !get-data method gets some data from Internet. Is it possible to mock that method so that it returns my own hardcoded data so I can test the module without connecting to the Internet? Ideally, the solution should not modify the definition of the class in any way. NOTE: A similar question exists regarding unittesting subroutines of

问题 I am trying to make a Ajax popup cart where product will be add dynamically. Everything is working fine except the product variation. when a variable product added to cart its not showing the variation name: <?php $items = WC()->cart->get_cart(); foreach($items as $item => $values) { $_product = wc_get_product( $values['data']->get_id() ); $product_link = get_permalink( $values['data']->get_id() ); $title = $_product->get_title(); $variations = wc_get_formatted_cart_item_data($values,true);

问题 I have a dictionary looking like this: d ={'key1':{'key2':{'key11':{'key12':'value 13'}}},'key3':[{'key4':'value2', 'key5': 'value3'}]} I want to get the value for 'key12' so I can do this: d.get('key1').get('key2').get('key11').get('key12') and it will return this: 'value 13' if I had a list like this: ['key1', 'key2', 'key11', 'key12'] how could I call the get recursively over the above list to return the same result? 回答1: You can use functools.reduce: >>> from functools import reduce >>>

问题 In C/C++ we have to declare functions before invoking them. In Javascript there is a hoisting variables and functions. I cannot find info about Java. Is there a hoisting of methods too? 回答1: In java functions/procedures are called methods. Only difference is that function returns value. No , there is no hoisting like JS(thank god). Only requirement for variables is that you have to create them before you use them. Just like C. But methods are part of an object. So they are attached to object

问题 interface A { public void f(); public void g(); } class B implements A { public void f() { System.out.println("B.f()"); } } public class Main { public static void main(String[] args) { B tmp = new B(); tmp.f(); System.out.println("B.f()"); } } I don't implement all the method in the interface A in B and it has a error that The type B must implement the inherited abstract method A.g() but why it can get the output that B.f() B.f() 回答1: Eclipse can "patch" around certain classes of compile

问题 I'm in the process of refactoring some MATLAB legacy software involving data obtained during a broad set of tests. I'm trying to create a class that contains the data of each individual channel, together with some extra info (e.g. its physical units). Just for the sake of placing this question here, the class could look like this: classdef Channel < handle properties (Access = 'private') prvValue, prvUnits; end properties (Dependent) value, units; end methods function this = Channel(value,