[英]Hashset Iteration throws Illegate State error
I have two hash maps and I need to remove an element from one of them. 我有两个哈希映射,我需要从其中一个中删除一个元素。 This is what I am doing right now.
这就是我现在正在做的事情。
for(Iterator<Byte> iterator = Ka.iterator(); iterator.hasNext();) {
byte kaValue = iterator.next();
byte potentialPIValue = (byte)(E1a + kaValue);
for(byte actualPIValue : getPIs) {
if (potentialPIValue != actualPIValue )
iterator.remove();
}
}
However i get this error and I am unable to see what's wrong with the code. 但是我收到此错误,我无法看到代码有什么问题。 Would anyone know what the problem here is?
有谁知道这里的问题是什么?
exception in thread "main" java.lang.IllegalStateException
at java.util.HashMap$HashIterator.remove(HashMap.java:910)
at DESPrac.main(DESPrac.java:59)
You're probably hitting the iterator.remove() statement twice without moving to the next element, since you're calling it in your interior loop. 你可能两次点击iterator.remove()语句而不移动到下一个元素,因为你在内部循环中调用它。
Try 尝试
for(Iterator<Byte> iterator = Ka.iterator(); iterator.hasNext();) {
byte kaValue = iterator.next();
byte potentialPIValue = (byte)(E1a + kaValue);
for(byte actualPIValue : getPIs) {
if (potentialPIValue != actualPIValue ){
iterator.remove();
break; // Exit the inner loop
}
}
}
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