Java:字串類簡單的Regex

標籤：

 1 class Test 2 { 3     public static void main(String[] args) 4     { 5         String str = "xia..as....yuan.com"; 6          7         //判斷 8         boolean b1 = str.endsWith(".com"); 9         boolean b2 = str.startsWith("xia");10         System.out.println(b1);11         System.out.println(b2);12         13         //切割14         String regex = "\\.+";15         String[] arr = str.split(regex);16         for(String s:arr)17         {18             System.out.println(s);19         }20 21         //替換22         String regex1 = "\\.+";23         String s1 = str.replaceAll(regex1,"*");24         System.out.println(s1);25 26         //多個標符變一個27         String regex2 = "(.)\\1+";28         String s2 = str.replaceAll(regex2,"$1");29         System.out.println(s2);30     }31 }

//對於匹配：可以查看API,找到匹配器Pattern以及match即可

Java:字串類簡單的Regex