在线等！这两行C++代码如何转换为java？谢谢

CString str="C27CF800F09BEDF4_51_2017-09-15";
str.GetBuffer()；

String str = "C27CF800F09BEDF4_51_2017-09-15";
StringBuffer sb = new StringBuffer(str)

CString str="C27CF800F09BEDF4_51_2017-09-15"; “C27CF800F09BEDF4_51_”这个是字符串的一部分，还是地址值

String str = "C27CF800F09BEDF4_51_2017-09-15";
char[] strChar = str.toCharArray();

是自定义的类吗?直接封装成JAVA代码