java编码的学习

参考于：http://www.cnblogs.com/Carrol/p/4425475.html

如下例子:

package demo;

public class Test2 {
     public static void main(String[] args) {
        String aa = "你好！";
        byte[] saa = aa.getBytes();
        System.out.println(saa.length);
        for(byte b:saa ){
            System.out.println(b);
        }
        String bb = new String(saa);
        System.out.println(bb);
    }
    
}