A brief talk on the transformation of Java string, character array, list _java

1. About Java.lang.string.split

The Xxx.split () method splits a string into substrings and then returns the result as an array of strings.

2. Array of string-turn characters

String str = "Aa.png,a2.png,a3.png";

String[] Arraystr =new string[]{};

Arraystr = Str.split (",");

3. Character array goto list

List List = Java.util.Arrays.asList (ARRAYSTR);

4.list conversion to character array

string[] Storestr = List.toarray (New string[list.size ());

public class Splittest {public 
 
  static void main (string args[]) { 
 
    string str = "a1.png,a2.png,a3.png";//Original String 
   
    string[] Arraystr = new string[] {};//character array 
    list<string> list = new arraylist<string> ();//List 
 
    Arra Ystr = Str.split (",");//string-character array 
    list = Java.util.Arrays.asList (ARRAYSTR);//character array goto list 
    string[] Storestr = List.toarray (New String[list.size ());//list to character array// 
 
    output character array value of */For 
    (String s:arraystr) { 
      System.out.println (s); 
 
    } 
    System.out.println ("-------------"); 
    /* Output List Value * * for 
    (String s:list) { 
      System.out.println (s); 
 
    } 
    System.out.println ("-------------"); 
 
    for (String s:storestr) { 
      System.out.println (s); 
 
    } 
    System.out.println ("-------------"); 
  } 

   

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