Java tutorial
//package com.java2s; public class Main { public static boolean isEqualIgnoreCase(final String s1, final String s2) { return s1 != null ? s1.equalsIgnoreCase(s2) : s2 == null; } public static boolean isEqualIgnoreCase(final String s1, final String s2, final String desiredS2ForNull) { return s1 != null ? s1.equalsIgnoreCase(s2) : s2.equals(desiredS2ForNull); } }