作业

public class TestGroup {
public static void main(String[] args) {
// 叠词 快快乐乐 高高兴兴
// \\1代表第一组又出现一次 \\2代表第二组又出现一次
// String regex ="(.)\\1(.)\\2";
// System.out.println("快快乐乐".matches(regex));
// System.out.println("快乐快乐".matches(regex));
// System.out.println("高高兴兴".matches(regex));
String regex = "(..)\\1";
System.out.println("快快乐乐".matches(regex));
System.out.println("快乐快乐".matches(regex));
System.out.println("高高兴兴".matches(regex));
        //按照叠词切割字符串
String s ="sdqqfgkkkhjppppkl";
String rgex ="(.)\\1+";
String[]arr = s.split(regex);
for (int i = 0; i < arr.length; i++) {
System.out.println(arr[i]);
}
//需求：将字符串“我我....我...我.要...要要...要学....学学..学.编..编编.编.程.程.程..程”还原成“我要学编程”
String s1 = "我我....我...我.要...要要...要学....学学..学.编..编编.编.程.程.程..程";
String s2 = s.replaceAll( "\\.","");
System.out.println(s2);
String s3 = s2.replaceAll("(.)\\d+","$1");
System.out.println(s3);
}


}