// validating/Assert1.java // (c)2017 MindView LLC: see Copyright.txt // We make no guarantees that this code is fit for any purpose. // Visit http://OnJava8.com for more book information. // Non-informative style of assert // Must run using -ea flag: // {java -ea Assert1} // {ThrowsException} public class Assert1 { public static void main(String[] args) { assert false; } } /* Output: ___[ Error Output ]___ Exception in thread "main" java.lang.AssertionError at Assert1.main(Assert1.java:9) */