Java 在正则表达式中使用命名组

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import java.util.regex.Matcher;

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import java.util.regex.Pattern;

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public class Main {/**来 自 n  o  w  j  a  v  a . c o m**/

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  public static void main(String[] args) {

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    // Prepare the regular expression

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    String regex = 

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      "\\b(?<areaCode>\\d{3})(?<prefix>\\d{3})(?<lineNumber>\\d{4})\\b";

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    // Reference first two groups by names and the thrd oen as its number

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    String replacementText = "(${areaCode}) ${prefix}-$3";

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    String source = "1111111111, 1111111, and 1111111111";

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    // Compile the regular expression

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    Pattern p = Pattern.compile(regex);

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    // Get Matcher object

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    Matcher m = p.matcher(source);

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    // Replace the phone numbers by formatted phone numbers

    /**

    来 自 时 代 J a v a 公 众 号

    **/

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