1.關於java.lang.string.split

   xxx.split()方法可以將一個字串分割為子字串，然後將結果作為字串陣列返回。

2.字串轉字元陣列

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

  String[] arrayStr =new String[]{};

  arrayStr = str.split(",");

3.字元陣列轉list

   List list = java.util.Arrays.asList(arrayStr);

4.list轉化為字元陣列

   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";// 原始字串  
        String[] arrayStr = new String[] {};// 字元陣列  
        List<String> list = new ArrayList<String>();// list  

        arrayStr = str.split(",");// 字串轉字元陣列  
        list = java.util.Arrays.asList(arrayStr);// 字元陣列轉list  
 

        String[] storeStr = list.toArray(new String[list.size()]);// list轉成字元陣列  

        /* 輸出字元陣列的值 */  
        for (String s : arrayStr) {  
            System.out.println(s);  

        }  
        System.out.println("-------------");  
        /* 輸出list值 */  
        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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