Java tutorial
//package com.java2s; import java.util.Collection; import java.util.Map; public class Main { @SuppressWarnings("rawtypes") public static boolean isNotBlank(Collection c) { return c != null && c.size() > 0; } @SuppressWarnings("rawtypes") public static boolean isNotBlank(Map m) { return m != null && m.size() > 0; } public static boolean isNotBlank(Object[] a) { return a != null && a.length > 0; } }