package cn.zmh.正则;
public class RegexDemo {
public static void main(String[] args) {
checkMail();
split_2();
split_1();
}
//邮箱
public static void checkMail(){
String email = "[email protected]";
boolean b = email.matches("[a-zA-Z0-9][email protected][0-9a-z]+(\\.[a-z]+)+"); System.out.println(b); } // 19 89 12 public static void split_2(){ String st = "19 89 12"; String[] s = st.split(" "); System.out.println("长度为"+s.length); for(int i=0;i<s.length;i++){ System.out.println(s[i]); } } // String split() public static void split_1(){ String st = "2019-03-19-10-51"; //按照-对字符串进行切割 String[] stArr = st.split("-"); System.out.println("长度为:"+stArr.length); for(int i=0;i<stArr.length;i++){ System.out.println(stArr[i]); } }}