tanakahda https://blog.hatena.ne.jp/tanakahda/ tanakahdaのプログラマ手帳 https://tanakahda.hateblo.jp/ Java String[] names = {"tanaka", "tomita", "ito", "kenmoto"}; // ラムダ式を使わない場合 class LengthComparator implements Comparator<String> { @Override public int compare(String o1, String o2) { return Integer.compare(o1.length(), o2.length()); } } Arrays.sort(names, new LengthComparator()); System.out.println(Arr… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftanakahda.hateblo.jp%2Fentry%2F2021%2F07%2F10%2F161850" title="ラムダ式でComparatorを実装する@Java - tanakahdaのプログラマ手帳" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2021-07-10 16:18:50 rich https://tanakahda.hateblo.jp/entry/2021/07/10/161850 1.0 100%