Java extracts numbers from a string

1, do a bit of operation will generally use to extract digital manipulation:

A, the list of pages, when the newly added data is not placed in the first or last, you need to page and loop to find the corresponding data

B, when the newly added data is placed in the first or the last one, you do not need to page, just go directly to the page and then directly find the first or the last piece of data.

2. Example:

Interface:

Javs Code:

/** * Java extracts a number from a string * str: Passed over the string */public static list<string> Getnum (String str) {Str.trim ();
    String Number=lnum.substring (3, 4);//directly gets the number in the passed string (for a string containing only a number) list<string>  ss=new ArrayList <String> (); For (String Sss:str.replaceAll ("[^0-9]", ","). Split (",")) {//First replace the string with an "," and then use "," to split the string into an array         if (sss.length () >0)             Ss.add (SSS);     return SS;}

Note: The above str parameter refers to a string (usually the text passed over the page, such as: page, total 3 pages)

Java extracts numbers from a string