将列表数据放入地图时获取异常 [英] getting exception while putting list data into the map
本文介绍了将列表数据放入地图时获取异常的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在迭代一个列表,并把它放在地图上,但问题是,当我返回那个地图时,我想要一个例外,你可以告诉它背后的原因是什么。我正在获取java。 lang.IndexOutOfBoundsException:索引:100,大小:100,因为我的列表大小是100
I am iterating over a list and and putting it contents over the map but the problen is that when I am returning that map I am geeting an exception could you please advise what is the reason behind it ..I am getting java.lang.IndexOutOfBoundsException: Index: 100, Size: 100 as my list size is 100
for(Map.Entry<Long, Integer> entries : result.entrySet()) {
pairList.add(new Pair(entries.getKey(), entries.getValue()));
}
int sum = 0;
int min = -1;
int max = -1;
int i = 0;
Pair p = pairList.get(i);
@SuppressWarnings("rawtypes")
//Iterator iterator = pairList.iterator();
Iterator iterator = pairList.listIterator();
while (iterator.hasNext()) {
if(sum == 0){
min = (int) p.key;
max = (int) p.key;
}
sum += p.value;
if(sum < BARRIER) {
max = (int) p.key;
} else {
if(sum > BARRIER) {
i--;
} else {
max = (int) p.key;
}
System.out.println(min+"_"+max);
result1.put(min,max);
sum = 0;
}
i++;
p = pairList.get(i);
}
System.out.println("#########");
System.out.println(result1.size());
for (Map.Entry<Integer, Integer> entry : result1.entrySet()) {
System.out.println(entry.getKey() + "/" + entry.getValue());
}
请告知如何克服这个问题
folks please advise how to overcome from this
推荐答案
你的问题在这里:
p = pairList.get(i);
如果您的列表大小为100,则允许的索引介于0到99之间。
If your list size is 100, then allowed indexes are between 0 - 99.
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