Write code to check if a string is Blank value using if statement
//package com.book2s; public class Main { public static void main(String[] argv) { String str = "book2s.com"; System.out.println(isBlank(str)); }//from w ww . j a v a 2 s . c o m public static boolean isBlank(String str) { if (str == null) { return true; } if (str.trim().length() == 0) { return true; } if (str.equals("")) { return true; } if (str.equals("null") || str.equals("NULL")) { return true; } return false; } }