ArrayListって配列でしょって思っていたわたしへ。 ちがいます。 わたしより。 リストとセットとマップと配列 「配列」が、ごく一般的な配列。 int[] a = new int[5]; a[0] = 10; a[1] = 11; ... System.out.println(a[0]); // 10 みたいに使うやつ。先に型と要素数を決めておかない ...

> 原文:[https://www . geesforgeks . org/如何在 java 中按降序对数组列表进行排序/](https://www.geeksforgeeks.org/how-to-sort-an-arraylist-in ...

So far, we have found ourselves using arrays to store most of our data. However, we have also noticed some limitations with arrays: You need to know the maximum size when you allocate it. You can’t ...

Community driven content discussing all aspects of software development from DevOps to design patterns. It’s easy to remove duplicates from a list in Java. There are a variety of functions in Java ...