int

问题 [![enter image description here][1]][1]I just trying working on SFML code of asteroid game where collision bullet is checked with asteroid CircleShape by radius.I just changed shape to ConvexShape but cant find solution for made correct collision between bullet vector with Asteroid vector ConvexShape.Radius not work correctly. I go put a original code from asteroid.cpp bullet.cpp and level.cpp this last where ocurr conditional for kill bullet and broke or kill asteroid by distance of radius

问题 I'm setting up an onclick method and i cannot access an int that i have set up in its parent method, is there a different way to use the Int? here is the code: Date past = new Date(cYear, cMonth, cDay); // current Date Date today = new Date(mYear, mMonth, mDay); // date Choosen by the user int days = Days.daysBetween(new DateTime(past), new DateTime(today)).getDays()+1; mDateDisplay.setText(""+days); // display the current date (this method is below) updateDisplay(); mButton

问题 This question already has answers here : convert big endian to little endian in C [without using provided func] [closed] (13 answers) Closed 5 years ago . I am trying to reverse the unsigned integer by using the '«' and '»', and bitwise 'AND' and 'OR' (& and |), but can't figure out how to do this. What I already have; int main(int argc, char** argv) { unsigned int getal; scanf("%i", &getal); printf("%X\n", getal); return 0; } User input: 0xaabbccdd, output now: AABBCCDD, what it should

问题 This question already has answers here : convert big endian to little endian in C [without using provided func] [closed] (13 answers) Closed 5 years ago . I am trying to reverse the unsigned integer by using the '«' and '»', and bitwise 'AND' and 'OR' (& and |), but can't figure out how to do this. What I already have; int main(int argc, char** argv) { unsigned int getal; scanf("%i", &getal); printf("%X\n", getal); return 0; } User input: 0xaabbccdd, output now: AABBCCDD, what it should

问题 This question already has answers here : uint8_t can't be printed with cout (8 answers) Closed 5 years ago . A tiny piece of code drives me crazy but hopefully you can prevent me from jumping out of the window. Look here: #include <iostream> #include <cstdint> int main() { int8_t i = 65; int8_t j; std::cout << "i = " << i << std::endl; // the 'A' is ok, same as uchar std::cout << "Now type in a value for j (use 65 again): " << std::endl; std::cin >> j; std::cout << "j = " << j << std::endl;

问题 I'm creating a MySQL DB which is composed of weekly data sets, going back for the past decade. There are some data points which exist for recent records, but which were not tracked in some of the older data sets. The fields in question all contain integer values, and '0' is a perfectly valid (and frequent) value for the records which did track the data points. I need to be able to distinguish between a value of zero and non-existent data. Therefore, I need to find out if it is possible to

问题 I have stored the letters(String), numbers(Int16) and Date(Date) in the core data. And the filter(NSPredicate) succeeded in organizing only the necessary data. I want to get the total sum of the numbers in this core data. Entity Name : Entity Attribute Name : Letter(String), Value(Int16), Date(Date) let context = (UIApplication.shared.delegate as! AppDelegate).managedObjectContext let entityDesc: NSEntityDescription = NSEntityDescription.entity(forEntityName: "Entity", in: context)! let

问题 Number = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19] for n in range(0, 20): print(Number[n]+1\n) InputNum3 = input() Number[InputNum3] = ''.join(str('-')) want: 1 2 3 4 .... 20 input 2 want: 1 - 3 4...20 but the result is: TypeError: list indices must be integers or slices, not str 回答1: Do: inputNum3 = int(input()) to get an Integer, you can't access lists by a String as index. Your variable names should start with lowercase. Generally snakecase too, with all lowercase separated by

问题 My code gets a string of characters. For example "aaabbdddd" A function inserts to a new string the letters and the amount of times they appear. So the output for this specific string should be "a3b2d4". My question is how do I insert the numbers into the string? I tried using itoa and it converted the entire string into a single number. Here's my code: #define _CRT_SECURE_NO_WARNINGS #include <stdio.h> #include <stdlib.h> #include <string.h> #define LONG 80 #define SHORT 20 void longtext

问题 I have a list of integers like: List<int> list = [1,2,3,4,5]; I would like to display this list inside a Text widget, having as a result: 1,2,3,4,5 What happens instead, is that it shows me the numbers inside the parenthesis: (1,2,3,4,5) This is my code: final String textToDisplay = list.map((value) { String numbers = ''; return numbers + value.toString() + ','; }).toString() and then inside the widget: Text(textToDisplay); 回答1: This seems like a perfect use of List.join , as follows: var