do-while

问题 I need input from a user to be integer and larger than 10. Here is my code. import java.util.*; //program uses class Scanner public class Tests { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println("Enter an Integer"); int weight; do { while (!input.hasNextInt()) { System.out.println("Please enter an integer!"); input.next(); // this is important! } System.out.println("Enter an Integer >= 10"); weight = input.nextInt(); } while (weight < 10);

问题 I am developing a small script and I am bit messed up with using a couple of curl and while loop. I want to stop processing curl at a point when one of the URL is giving me a information. Note: I have multiple curl requests. So my concept is, I have a couple of URLS, which I have to process and get information from. If information is found on a particular URL, it will be giving me a string. If no information is found, it will give me no value. So I have nearly 10 URLs to process approximately

问题 I want to add a loop to my program so that when a user enters an incorrect name it goes back to the start of the program and asks them to enter their name again. I think I need a do-while loop but I am not sure how to implement it with the if statements and boolean already included. I want the user to be only have three entries and if they get it wrong three times then the program closes. import java.util.Scanner; public class Username { public static void main(String[] args) { { Scanner kb =

问题 I apologize if this is a duplicate as I have been searching and haven't found an answer. I am new to VBA and how they structure loops. I am trying to do a search and compare. I need to compare the values in the first row to see if they match the second row and if not then keep moving on to the next row. See my code below (it runs without error just doesn't find any values that do exist as I can search it manually and find them) This data set could be really large so I want to write this as

问题 Please note that I while I am comfortable with Java, I am not exceptionally gifted nor do I know all the jargon, so please explain your answers with very little coder jargon and as much normal English, or explain what the jargon means after you use it. Also, this is my first time with Stackoverflow, so let me know if this was a decent question and give me some pointers. I am taking an AP Computer Science class at my high school. We use Java. We were recently taught do-while loops and I just

问题 So I have a general question about the do / while loop. I'm learning C++ and I know that you can write something like that: do{ .... } while(a<10 && cout<<"message"); The point is, that i know this is possible in c++, but do we really do that? I mean, the " cout " thing inside the while? 回答1: The fact is some people do this (i.e. run a function as part of the condition evaluation). It makes sense in a shell script, but if you're not using a shell script, it's sometimes not clear what the

问题 While vs. do-while While and do-while are functionally equivalent when the blocks are empty , although while seems more natural: do {} while (keepLooping()); while (keepLooping()) {} One typical use case of a while/do-while with an empty block is to force an update of atomic objects with a compareAndSet (CAS). For example the code below will increment a in a thread-safe way: int i; AtomicInteger a = new AtomicInteger(); while (!a.compareAndSet(i = a.get(), i + 1)) {} Context Several parts of

问题 The following syntax is valid: while (int i = get_data()) { } But the following is not: do { } while (int i = get_data()); We can see why via the draft standard N4140 section 6.4 : 1 [...] condition : expression attribute-specifier-seq opt decl-specifier-seq declarator = initializer-clause attribute-specifier-seq opt decl-specifier-seq declarator braced-init-list 2 The rules for conditions apply both to selection-statements and to the for and while statements (6.5). [...] and section 6.5 1

问题 what behaviour can I expect when I run this code: do while(testA) { // do stuff } while(testB); Will it behave like: do { while(testA) { // do stuff } } while(testB); Or: if(testA) { do { // do stuff } while(testA && testB); } Or something totally unexpected? I ask this question because I think this is quite ambiguous, and for other people searching on this topic, not because I am lazy to test it out. 回答1: It is equivalent to your first block: do { while(testA) { // do stuff } } while(testB);

问题 Is there an idea of a while loop in Camel? We are using Camel for doing batch processing (not really the remit of an ESB I know). I want to keep checking on the status of something else whilst I am processing messages in the ESB. I can only find a loop that loops for a defined number of times, i.e. for testing or a quartz timer that will check every x seconds. Neither of these are really suitable. Any suggestions, or am I asking for something simply outside of the remit of an ESB? 回答1: What