ArrayList.sort(new Comparator());←なぜOK?
ArrayList.sort(new Comparator());←なぜOK? なぜ引数をComparator.compare()のようにしなくてよいのでしょうか。 Java SE 11 Sil...
Qiita is a knowledge sharing service for engineers.
- You can follow users and tags
- You can stock useful information
- You can make edit suggestions for articles