java正则表达式实例积累

实例一，直接里利用Scanner构造

String input = "1 fish 2 fish red fish blue fish";     Scanner s = new Scanner(input);     s.findInLine("(\\d+) fish (\\d+) fish (\\w+) fish (\\w+)");         for (int i=1; i<=s.match().groupCount(); i++)         System.out.println(s.match().group(i));     s.close(); 

实例二，先用Pattern构造一个正则表达式 ，利用compile(regex)函数，再将此表达式放入Matcher中匹配！

Pattern myPattern = Pattern.compile(regex);

Matcher myMatcher = myPattern.matcher(myTextString);
myMatcher.gruop()为获取的匹配项