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Enable Assertions from the command line in Java
By default, assertions are disabled in Java. In order to enable them we use the following command −
java -ea Example (or) java -enableassertions Example
Here, Example is the name of the Java file.
Let us see an example for generation of an assertion error by the JVM −
Example
public class Example { public static void main(String[] args) { int age = 14; assert age >= 18 : "Cannot Vote"; System.out.println("The voter's age is " + age); } }
Output
The voter's age is 14
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