Java 正则表达式－－字符串匹配、切割、与替换

 

package Regex;

public class Regexs {

	public static void main(String args[])
	{
						//正则表达式切割
		//splitShow("Monday,tuesday,third",",");
		//splitShow("Moday.tureday.third","\\."); //按照   .  切
		//splitShow("Moday tuesday third"," +");//按照空格切
		//splitShow("C:\\windows\\system","\\\\");   //文件路径的切割
		
		//splitShow("dafakkafafgjjfafaaa","([a-z])\\1+"); //叠词的切割
		
		
		//正则表达式替换
		
		replaceAllShow("afafa461341af134634131afawfafa","\\d{5,10}","#");// 将数字替换成　#
		
		
		/*
		 * 			去掉一个字符串里面重复的字符，这个怪有用
		 * 
		 * */
		replaceAllShow("aaabbbcddd","([a-z])\\1+","$1");//去掉连接重复的，只保留一个
		
		
	}
	/*
	 * 				正则表达式的切割
	 * 
	 * */
	public static void splitShow(String str,String regex)
	{
		String result[] = str.split(regex);
		for(String s:result)
			System.out.println(s);
	}
	
	/*
	 * 			正则表达式的替换
	 * 
	 * */
	
	public static void replaceAllShow(String str,String regex,String newstr)
	{
		str=str.replaceAll(regex,newstr);
		System.out.println(str);
	}
}