indexoutofboundsexception

问题 I am creating a program that finds the solutions to the eight queens problem by breadth search. My code so far: import java.util.*; import java.lang.*; import java.io.*; public class EightQueens { public static void main(String[ ] args) { ArrayList<List<Integer>> states = new ArrayList<List<Integer>>(); List<Integer> start=new ArrayList<Integer>(); for (int s=0; s<8; s++) { start.add(0); } states.add(start); List<Integer> a = new ArrayList<Integer>(); List<Integer> b = new ArrayList<Integer>(

问题 I have a listview which loads more listitems when it reaches 20rh listitem using onscroll listener I want to add a footer saying loading more while more listitems are getting loaded When i reach the 20th listitem the app crashes saying idex out of bounds in logct my activity public class InterActivity extends Activity { SwipeMenuListView listview; //ListView listview; View mFooterView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);

问题 I have a listview which loads more listitems when it reaches 20rh listitem using onscroll listener I want to add a footer saying loading more while more listitems are getting loaded When i reach the 20th listitem the app crashes saying idex out of bounds in logct my activity public class InterActivity extends Activity { SwipeMenuListView listview; //ListView listview; View mFooterView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);

问题 I've made this code to convert whole base 10 numbers into binary. The code I believe is everything that it needs to be but I can't get me ArrayLists to work. I've spent a few hours on this site and other trying countless changes to no avail. I've gotten the code to compile without and errors but as soon as I enter an int the program crashes. Here is the code: import java.util.Scanner; import java.util.ArrayList; public class BinaryConverter { public static void main(String[] args) { Scanner

问题 I have a persistend Book Class with the following properties PropertyName -> HibernateMappingType -> JavaType id -> long -> long title -> text -> String author -> string -> String systemId -> long -> long status -> boolean -> boolean fullClassification -> string -> string And my table description looks like this: So far everything seems good, but when I try to fetch all the values in the table I get the following Exception Message: 20:04:43,832 TRACE BasicExtractor:61 - extracted value (

问题 I'm working on my project about Bakery Algorithm but i don't have any demo of that Algorithm in C# . Because of that situation i've converted some java code that i found on Wikipedia . But Anyway , it doesn't seem to work ! Updated : Here's my full-working code ( old code include in "//" comment ) namespace BakeryAlgorithm { class Program { static int threads = 10; static string x = ""; static int count = 0; static int[] ticket = new int[threads]; static bool[] entering = new bool[threads];

问题 I am loading about 20,000 rows into a <cfspreadsheet> . It throws an error: When I limit the number of rows to 15,000, I don't get an error. Is there a hard limit on the number of rows <cfspreadsheet> supports? 回答1: This sounds similiar to the issue I had here: How do I fix SpreadSheetAddRows function crashing when adding a large query?. If you have CF10 then you might be in luck 'cause that should be fixed now (as of Update 10 at least). 来源： https://stackoverflow.com/questions/19214735/data

问题 I understand that arrays are a primitive class and therefore do not have built in methods to detect out of range errors. However, the vector class has the built in function .at() which does detect these errors. By using namespaces, anyone can overload the [ ] symbols to act as the .at() function by throwing an error when a value out of the vector's range is accessed. My question is this: why is this functionality not default in C++? EDIT: Below is an example in pseudocode (I believe - correct

问题 In my application I try to load contents from a url, store them in a mutable array and show them in a table view. But I can't get it working, because every time I run the app this error appears: *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayI objectAtIndex:]: index 1 beyond bounds [0 .. 0]' *** First throw call stack: (0x34dd088f 0x36d9e259 0x34d2823d 0x316e562f 0x315f09a9 0x313c0c5d 0x313c1b95 0x313c1ae7 0x313c16c3 0xa5cfb 0x33623ec7 0x35387a09

问题 Right now, I have a program containing a piece of code that looks like this: while (arrayList.iterator().hasNext()) { //value is equal to a String value if( arrayList.iterator().next().equals(value)) { // do something } } Am I doing that right, as far as iterating through the ArrayList goes? The error I am getting is: java.lang.ArrayIndexOutOfBoundsException: -1 at java.util.ArrayList.get(Unknown Source) at main1.endElement(main1.java:244) at com.sun.org.apache.xerces.internal.parsers