java - 如何对对象的arraylist进行排序? [英] How to sort an arraylist of objects java?

问题描述

所以我想要一个 java 中的对象数组.

So I want an arraylist of objects in java.

我有 object1.number 和 object2.number、object3.number 等...但这些对象除了 number，例如name、distance等...

I have object1.number and object2.number, object3.number, etc... but those objects have other properties besides number, such as name, distance, etc...

因此，如果它正在对 array 中的字符串进行排序，那么将一个字符串放入 temporal 并让另一个字符串代替它......但是在对象的 araryList 中，我该怎么做?

So if it was sorting a string in a array it would just be, put a string in a temporal and let the other string take its place... but in an araryList of objects, how can I do it?

我可以将对象移动到数组的那个位置吗?

Can I just move objects to that position of the array?

谢谢.

推荐答案

实现你自己的比较器:

Arrays.sort(yourArray, new Comparator<YourClass>() {
        @Override
        public int compare(YourClass o1, YourClass o2) {
            //compare object properties
        }
});

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