repeat

问题 So this question has two parts, which I think may be related, and it's mostly abstract. Briefly, here's what I'm doing: I have a JFrame with a JPanel and some child JPanels each with 3 JButtons on it. I also created a JComponent called glassPanel for the JFrame (i.e. myJFrame.setGlassPane(glassPanel) ), that allows me to paint over the JPanels and buttons. (1) Essentially triggered by clicking all 3 buttons on a JPanel , glassPanel is set to Visible (which appears to then call paintComponent(

问题 I am trying to replace " on inch i.e. 12" wall would become 12 inch wall I have 2 patterns working: /\b([0-9]+)"/ -> preg_replace('/\b([0-9]+)"/', '$1 inch ', $string) and /\b([0-9]*)"/ -> preg_replace('/\b([0-9]*)"/', '$1 inch ', $string) what is a difference between them then, why + and * works same way here ? cheers, /Marcin 回答1: The + means find the previous character/group 1 or more times. The * means find the previous character/group any amount of times (0-infinity) 回答2: /\b([0-9]+)"/

问题 Given an input char[] I would like to find the number of discrete pairs in the string. So for an input of: "dddd" the output is 2 pairs "ddd" the output is 1 pair "dd" the output is 1 pair "d" the output is 0 pairs The characters in each pair must be adjacent. For an input of "abca" the output is still 0 because the 'a' s are not adjacent.* The goal is to find the total number of pairs in the string. So for an input of "aaxbb" the output should be 2.* For my input string of char a[] =

问题 could anyone help me restart my program from line 46 if the user enters 1 (just after the comment where it states that the next code is going to ask the user for 2 inputs) and if the user enters -1 end it. I cannot think how to do it. I'm new to C# any help you could give would be great! class Program { static void Main(string[] args) { //Displays data in correct Format List<float> inputList = new List<float>(); TextReader tr = new StreamReader("c:/users/tom/documents/visual studio 2010

问题 Here is the problem I am trying to solve but having trouble solving: Define a function called repeat_middle which receives as parameter one string (with at least one character), and it should return a new string which will have the middle character/s in the string repeated as many times as the length of the input (original) string. Notice that if the original string has an odd number of characters there is only one middle character. If, on the other hand, if the original string has an even

问题 I'm new here and also new in Google Apps Script. I'm trying to find out how to repeat a section in Google Forms n times and the closest script I found is this one: link But this script is usable in Edit mode, and I need a specific section repeats while someone is responding and how responses will be plotted in Google Spreadheet this way. Can someone help me? Sorry for my English. 回答1: Google Apps Script can't edit the form response view while a respondent is viewing it. To repeat a section,

问题 like a decimal number 0.1, represented as binary 0.00011001100110011...., this is a infinite repeating number. when I write code like this: float f = 0.1f; the program will rounding it as binary 0 01111011 1001 1001 1001 1001 1001 101, this is not original number 0.1. but when print this variable like this: System.out.print(f); I can get original number 0.1 rather than 0.100000001 or some other number. I think the program can't exactly represent "0.1", but it can display "0.1" exactly. How to

问题 Editing this post for simplification according to @agstudy I am trying to develop a model that simulates a polymer using a random uniform distribution. The model has 2 states State 1 (probability of state 1 if in state 2 is .003): growth probability, A = .01 shrink probability, B = .0025 State 2 (probability of state 2 if in state 1 is .0003): growth probability, A = .01 shrink probability, E = .05 Simulation starts in State 1 While in State 1, sample random numbers from data.frame1, if # <

问题 I have a problem with scheduleAtFixedRate. It will only called once and does not repeat. what is wrong? public class TimerService extends Service { static final int UPDATE_INTERVAL=3000; private Timer timer = new Timer(); private Date date; @Override public int onStartCommand(Intent intent, int flags, int startId) { repeatJob(); //Here we want this service to continue running until it is explicitly stopped, so return sticky return START_STICKY; } private void repeatJob() { timer

问题 I am a new user, so excuse if this question should be answered in it's original post: regex match numbers greater or equal than 20, by increments of 5, range 20 to 999 Neverteless, here is the current question: Match all numbers equal or greater then 20 (no upper limit) Increments of 5 No decimal point Leading zeros shouldn't be allowed With stackoverflow user YMI response on another post: (\d{2}|[2-9])[05] and user nhahtdh ^([2-9]|[1-9]\d)[05]$ However I would like to explorer the option of