Input: version1 = "0.1", version2 = "1.1" Output: -1
Input: version1 = "7.5.2.4", version2 = "7.5.3" Output: -1
public int compareVersion(String version1, String version2) {
String[] levels1 = version1.split("\\.");
String[] levels2 = version2.split("\\.");
int length = Math.max(levels1.length, levels2.length);
for (int i = 0; i < length; i++) {
Integer v1 = i < levels1.length ? Integer.parseInt(levels1[i]) : 0;
Integer v2 = i < levels2.length ? Integer.parseInt(levels2[i]) : 0;
int compare = v1.compareTo(v2);
if (compare != 0) {
return compare;
}
}
return 0;
}
165.CompareVersionNumbers
原文：https://www.cnblogs.com/MarkLeeBYR/p/10677863.html
