1 package basictype;
 2 
 3 /**
 4  * byte、char和String類型相互轉換
 5  */
 6 public class CHJavaType {
 7     public static void main(String[] args) {
 8         String string = "abcd";
 9 
10         // String轉char[]
11         char[] chars = string.toCharArray();
12         for (char c : chars) {
13             System.out.println(c);
 
14         }
15         // char[]轉String
16         System.out.println("String.valueOf:" + String.valueOf(chars));
17         System.out.println("new String:" + new String(chars));
18 
19         byte[] bytes = {};
20         try {
21             // String轉byte[]
22             bytes = string.getBytes("UTF-8");
 
23         } catch (Exception e) {
24             e.printStackTrace();
25         }
26 
27         // byte[]轉String
28         System.out.println(new String(bytes));
29     }
30 }

Java之byte、char和String類型相互轉換