如何有效地将字节数组转换为字符串
问题描述：
我有一个151字节的字节数组，通常是一条记录，需要将记录插入到oracle数据库中。在151字节的数组范围内，从0到1是记录id，2到3是引用id，4到9是日期值。字节数组中的以下数据是日期值。我想将其转换为字符串
I have a byte array of 151 bytes which is typically a record, The record needs to inserted in to a oracle database. In 151 byte of array range from 0 to 1 is a record id , 2 to 3 is an reference id , 4 to 9 is a date value. The following data in an byte array is a date value. i want to convert it to string
byte[] b= {48,48,49,48,48,52}; // when converted to string it becomes 10042.
new String(b); // current approach
有没有办法有效地转换某个范围的字节数组（ Arrays.copyOfRange（b，0,5））到字符串。
is there any way to efficiently to convert byte array of some range (Arrays.copyOfRange(b,0,5)) to string .
答
new String(b, 0 ,5);
Gee，谁能猜到？每个打扰看 API doc ，那是谁。
Gee, who could have guessed? Everyone who bothered to look at the API doc, that's who.