Java - Write code to Check whether all string values in given array is null or empty.

Requirements

Write code to Check whether all string values in given array is null or empty.

Demo

//package com.book2s;

public class Main {
    public static void main(String[] argv) {
        String stringTokens = "book2s.com";
        System.out.println(isAllEmpty(stringTokens));
    }//from w w  w.  j a  va  2 s .com

    /**
     * Check whether all string values in given array is null or empty.
     * 
     * @param stringTokens
     * @return true if all string values is null or empty.
     */
    public static boolean isAllEmpty(String... stringTokens) {
        if (stringTokens != null && stringTokens.length > 0) {
            for (String str : stringTokens) {
                if (isEmpty(str) == false) {
                    return false;
                }
            }
        }
        return true;
    }

    /**
     * Check whether given string is null or empty.
     * 
     * @param str
     * @return true if the string token is null or empty
     */
    public static boolean isEmpty(String str) {
        return (str == null || str.trim().length() == 0);
    }
}