Assert with an informative message : Assert « Language Basics « Java

Assert with an informative message


// {JVMArgs: -ea}
// {ThrowsException}
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// See copyright notice in CopyRight.txt.

public class Assert2 {
  public static void main(String[] args) {
    assert false: "Here's a message saying what happened";


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2.Enabling Assertions from the Command Line: -ea and -da enable and disable assertion in a package subtree or in a class.
3.Handling an Assertion Error
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6.Using the class loader to enable assertions
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