Java - 检查项目是否在数组中
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Java - Check if item is in array
提问by DannyF247
Possible Duplicate:
In Java, how can I test if an Array contains a certain value?
可能的重复：
在 Java 中，如何测试数组是否包含某个值？
I have an array setup as follows:
我有一个数组设置如下：
Material[] blockedlevel1 = {
Material.mymaterialone, Material.mymaterialtwo
};
How do I see if a Material is in this array?
如何查看材质是否在此数组中？
采纳答案by óscar López
How about looking for it in the array?
如何在数组中寻找它？
for (Material m : blockedlevel1) {
if (m.equals(searchedMaterial)) { // assuming that equals() was overriden
// found it! do something with it
break;
}
}
回答by moodywoody
If you want an easy way to check if an element is part of a collection you should probably consider a different data-structure like Set (and use contains()). With Array you can only iterate over the elements and compare each one.
如果您想要一种简单的方法来检查元素是否属于集合的一部分，您可能应该考虑使用不同的数据结构，例如 Set（并使用 contains()）。使用 Array 您只能迭代元素并比较每个元素。
回答by Tom
How about looking for it using the Arraysclass?
如何使用Arrays类查找它？
Or as someone suggested, turn your array into a Listand use the contains()method. Remember that you mayhave to override the Material#equals method.
或者按照某人的建议，将您的数组转换为List并使用contains()方法。请记住，您可能必须覆盖 Material#equals 方法。
