android 大小写变换

android 大小写转换

private void toUpperCase(byte[] data, int start, int len){int end = start + len;int dist = 'A' - 'a';for (int i = start; i < end; i++){if (data[i] >= 'a' && data[i] <= 'z'){data[i] += dist;}}}private void toLowerCase(byte[] data, int start, int len){int end = start + len;int dist = 'a' - 'A';for (int i = start; i < end; i++){if (data[i] >= 'A' && data[i] <= 'Z'){data[i] += dist;}}}