VersionUtil.java

package org.andork.util;

public class VersionUtil {
	public static int compareVersions(String a, String b) {
		String[] aParts = a.split("\\.");
		String[] bParts = b.split("\\.");

		for (int i = 0; i < Math.min(aParts.length, bParts.length); i++) {
			int aNum = Integer.parseInt(aParts[i]);
			int bNum = Integer.parseInt(bParts[i]);
			if (aNum != bNum) {
				return aNum - bNum;
			}
		}

		return aParts.length - bParts.length;
	}
}