/* Java正規表現サンプル */ import java.util.regex.Pattern; import java.util.regex.Matcher; class JSample2_2{ public static void main(String args[]){ String str1 = "abbc"; String str2 = "abbbbc"; String str3 = "abbbbbbc"; String regex1 = "ab+b"; Pattern p1 = Pattern.compile(regex1); String regex2 = "ab++b"; Pattern p2 = Pattern.compile(regex2); String regex3 = "ab++c"; Pattern p3 = Pattern.compile(regex3); System.out.println("パターン : " + regex1); check(p1, str1); check(p1, str2); check(p1, str3); System.out.println("パターン : " + regex2); check(p2, str1); check(p2, str2); check(p2, str3); System.out.println("パターン : " + regex3); check(p3, str1); check(p3, str2); check(p3, str3); } private static void check(Pattern p, String target){ Matcher m = p.matcher(target); if (m.find()){ int start = m.start(); int end = m.end(); String str = target.substring(0, start) + "[" + m.group() + "]" + target.substring(end, target.length()); System.out.println("○ " + str); }else{ System.out.println("× " + target); } } }