Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.List;

import java.util.Map;

public class Main {
    /**
     * Beware, the valid word "null" is also rendered as empty.
     *
     * @param str
     * @return
     */
    public static boolean isEmpty(String str) {
        return str == null || "".contentEquals(str) || "null".contentEquals(str);
    }

    public static <K, V> boolean isEmpty(Map<K, V> map) {
        return map == null || map.isEmpty();
    }

    public static <T> boolean isEmpty(List<T> l) {
        return l == null || l.isEmpty();
    }
}