java 正则表达式_JAVA_编程开发_程序员俱乐部

去除重复值

String regex = "(\\w+)((\\s)\\1)*";
String text = "one one one";
Pattern pattern = new Pattern(regex);
Matcher matcher = pattern.matcher(text);
while (matcher.find()) {
??? System.out.println(matcher.group(0) );
??? System.out.println(”starts at“ + matcher.start() );
??? System.out.println(“ends at ” + matcher.end() );
}
Replacer replacer = pattern.replacer("$1");
System.out.println(replacer.replace(text));

输出：
one one one??? starts at 0??? ends at 11??? length 11??
one

//金额三位分割

p = Pattern.compile("(?<=(\\d))(?=(?:\\d{3})+$)");
matcher=p.matcher("1234567890");
System.out.println(matcher.replaceAll(","));

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// 去掉<>标签及其之间的内容
??? ??? p = Pattern.compile("(<[^>]*>)");
??? ??? m = p.matcher(str);
??? ??? String temp = str;
??? ??? //下面的while循环式进行循环匹配替换，把找到的所有
??? ??? //符合匹配规则的字串都替换为你想替换的内容
??? ??? while (m.find()) {
??? ??? ??? value = m.group(0);
??? ??? ??? temp = temp.replace(value, "要替换的内容");
??? ??? }

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//正则 匹配例如 "${jljkljsd98_23u749823}" 即不能包含 "中文" ；" ，"； " \ "
? String regex="\\$\\{\\w*\\}$";

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