1 package org.catacomb.interlish.lang;
2
3
4 public class U {
5
6
7
8 public static boolean isBlank(String s) {
9 return (s == null || s.length() == 0);
10 }
11
12 public static boolean eitherIsBlank(String s1, String s2) {
13 return (isBlank(s1) || isBlank(s2));
14 }
15
16
17 public static boolean differ(Object s1, Object s2) {
18 return !same(s1, s2);
19 }
20
21 public static boolean same(Object s1, Object s2) {
22 return ((s1 == null && s2 == null) || s1.equals(s2));
23 }
24
25
26
27 }