String Util

   //依据正则式从父串中剔除  String replaceAll("regular","");
	           
	        String  sub ="";  
	        String  s="upload/1.txt;upload/2.txt;upload/3.txt;upload/4.txt";
	        System.out.println("s:"+s);  
	        sub = s.replaceAll( ";upload/1.txt|upload/1.txt;","");
	        System.out.println("sub:"+sub);  
	        
	        s="upload/1.txt;upload/2.txt;upload/3.txt;upload/4.txt";
	        sub = s.replaceAll( ";upload/2.txt|upload/2.txt;","");
	        System.out.println("sub:"+sub);  
	        
	        s="upload/1.txt;upload/2.txt;upload/3.txt;upload/4.txt";
	        sub = s.replaceAll( ";upload/3.txt|upload/3.txt;","");//replaceAll( ",122.jpg|122.jpg,","");  
	        System.out.println("sub:"+sub); 
	        
		 //检索是否存在
		 List<String> phones=new ArrayList<String>();
		 phones.add("13938135986");
		 phones.add("13598520599");
		 phones.add("13511111111");
		 phones.add("13513810086");
		 phones.add("13569190527");
		 phones.add("13513810068");
		 int i=phones.indexOf("13511111111");//
		 int k=phones.indexOf("00000000000");//
		 System.out.println("i："+i+"k:"+k);
		 
		 
		 //是否以某字符串开始Boolean startWith("");Boolean startWith("",int index);		 
		 String fileName="gglys001";
		 System.out.println(fileName.startsWith("gly",1));//true
		 
		 //是否以否字符串结束Boolean endsWith("");
		 String fileName="temp.gif";
		 System.out.println(fileName.endsWith(".gif"));//true
		 
		 //顺序索引int indexOf("");int indexOf("",int index);
		 String fileName="temp.gif";
		 int index=fileName.indexOf("gif");
		 System.out.println(index);//5
		 
		 //逆序索引int lastIndexOf("")
		 String fileName="head.temp.gif";
		 int dot=fileName.lastIndexOf(".");
		 System.out.println(dot);//9
		 //获取字串String subString(int index);
		 System.out.println(fileName.substring(9));//.gif
		 
		 //regex正则匹配Boolean matches("regex");
		 String s="001003";
		 System.out.println(s.matches("001[\\d]*"));//true
		 
		 //是否包含
		 String s="1.txt,2.txt,3.txt";
		 System.out.println(s.contains("2.txt"));//true
		 System.out.println(s.indexOf("2.txt"));//6
		 
		 //分离字符串
		 String s="1.txt,2.txt,3.txt";
		 String []strArr=s.split(",");
		 System.out.println(s);
		 for(String sub : strArr)
		 {
			 System.out.println(sub);
		 }