tekTech https://blog.hatena.ne.jp/tekTech/ tekTechめも https://tektech.hateblo.jp/ Java int bytelen1 = s1.getBytes().length; で可能。例） public class test2{ public static void main(String args[]){ String s1="てすと文字列"; String s2="TestString"; String s3="全角ハンカク混在Test"; System.out.println("s1="+s1); System.out.println("s2="+s2); System.out.println("s3="+s3); int len1 = s1.length(); int len2 = s… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftektech.hateblo.jp%2Fentry%2F20040524%2Fp1" title="文字列の長さ（標準キャラセットでの）の取得方法 - tekTechめも" 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 2004-05-24 00:00:00 rich https://tektech.hateblo.jp/entry/20040524/p1 1.0 100%