TestQuantifiers

public class RegexQuantifiers {
    public static void main(String[] args) {
        Pattern p1 = Pattern.compile("(.{3,10})[0-9]");
        Pattern p2 = Pattern.compile("(.{3,10}?)[0-9]");
        Pattern p3 = Pattern.compile("(.{3,10}+)[0-9]");
        String s = "aaaa5bbbb6";
        Matcher m1 = p1.matcher(s);
        Matcher m2 = p2.matcher(s);
        Matcher m3 = p3.matcher(s);
        System.out.println("输入的字符串：" + s + "\n" + "匹配规则p1" +p1 + "\n"+ "匹配规则p2" + p2 + "\n"+ "匹配规则p3" +p3);
        if (m1.find()) {
            System.out.println(m1.start()+"-"+m1.end() + "p1为贪婪者，一下吃掉10个，但是还能吐");
        }else {
            System.out.println("m1 not match 此为贪婪者，但是还能吐");
        }
        if (m2.find()) {
            System.out.println(m2.start()+"-"+m2.end() + "p2为懒惰者，只吃三个，但是还能吃");
        }else {
            System.out.println("m2 not match，此为懒惰者，但是还能吃");
        }
        if (m3.find()) {
            System.out.println(m3.start()+"-"+m3.end());
        }else {
            System.out.println("m3 not match，此为顽固者，吃掉10个，绝不往外吐");
        }
    }
}