compareToIgnoreSpaces(byte[] byteArray, char[] anotherCharArray) {
原创
©著作权归作者所有：来自51CTO博客作者TechOnly的原创作品，请联系作者获取转载授权，否则将追究法律责任
public static int compareToIgnoreSpaces(byte[] byteArray, char[] anotherCharArray) {
if (byteArray == null && anotherCharArray == null) {
return 0;
} else if (byteArray == null) {
return -1;
} else if (anotherCharArray == null) {
return 1;
}
if (byteArray.length == 0 && anotherCharArray.length == 0) {
return 0;
} else if (byteArray.length == 0) {
return -1;
} else if (anotherCharArray.length == 0) {
return 1;
}
// we only ignore end white spaces
int startIndex0 = 0;
int endIndex0 = byteArray.length - 1;
if (startIndex0 < byteArray.length) {
// charArray has non whitespace char
while (endIndex0 >= 0) {
char c = (char) (byteArray[endIndex0] & 0xFF);
if (c == ' ') {
endIndex0--;
} else {
break;
}
}
}
int startIndex1 = 0;
int endIndex1 = anotherCharArray.length - 1;
if (startIndex1 < anotherCharArray.length) {
// anotherCharArray has non whitespace char
while (endIndex1 >= 0) {
char c = anotherCharArray[endIndex1];
if (c == ' ') {
endIndex1--;
} else {
break;
}
}
}
int len1 = endIndex0 - startIndex0 + 1;
int len2 = endIndex1 - startIndex1 + 1;
int n = ((len1 <= len2) ? len1 : len2);
for (int i = 0; i < n; i++) {
char c1 = (char) (byteArray[startIndex0 + i] & 0xFF);
char c2 = anotherCharArray[startIndex1 + i];
if (c1 != c2) {
return c1 - c2;
}
}
return len1 - len2;
}
