字符串比大小

代码健壮性和性能都不怎么好，只是为了锻炼思维，嘻嘻😁

比大小
栗子：
1.1.2 > 1.0.2
1.1.1 > 1.1
1.1.0 = 1.1

public class Compare {

    public static String maxStr(String str1,String str2){
        String maxStr = null;
        String [] s1 = str1.split("\\.");
        String [] s2 = str2.split("\\.");
        for (int i = 0; i < s2.length; i++) {
            if (Integer.parseInt(s1[i]) > Integer.parseInt(s2[i])) {
                maxStr = str1;
                break;
            } else if (Integer.parseInt(s1[i]) < Integer.parseInt(s2[i])) {
                maxStr = str2;
                break;
            }
        }
        if (maxStr == null) {
            if(s1.length==s2.length){
                maxStr = str1;
            }else {
                for (int j = s2.length; j < s1.length; j++) {
                    if (Integer.parseInt(s1[j]) > 0) {
                        maxStr = str1;
                        break;
                    } else if ((j == s1.length - 1) && (maxStr == null)) {
                        maxStr = str1;
                        break;
                    }
                }
            }
        }
        System.out.println(maxStr);
        return maxStr;
    }
    public static void main(String [] args){
        String str1 = "1.1.2";
        String str2 = "1.0.2";
        String [] s1 = str1.split("\\.");
        String [] s2 = str2.split("\\.");
        if(s1.length>=s2.length) {
            maxStr(str1, str2);
        }else{
            maxStr(str2, str1);
        }
    }
}