Java tutorial
//package com.java2s; public class Main { public static boolean isEquals(String... agrs) { String last = null; for (int i = 0; i < agrs.length; i++) { String str = agrs[i]; if (isEmpty(str)) { return false; } if (last != null && !str.equalsIgnoreCase(last)) { return false; } last = str; } return true; } public static boolean isEmpty(String value) { if (value != null && !"".equalsIgnoreCase(value.trim()) && !"null".equalsIgnoreCase(value.trim())) { return false; } else { return true; } } }