How to enable Java keyword in Eclipse?

Question

How to enable assert keyword in Eclipse?

 public class A { public static void main(String ... args) { System.out.println(1); assert false; System.out.println(2); } } 

Answer 1

Specifically:

• Go to Run->run configuration
• select java application in the left navigation bar.
• right click and select New .
• select the Arguments tab
• Add -ea to the VM arguments.

Answer 2

If someone wants to enable the default statements (as opposed to including them for only one launch configuration), you can follow these steps:

• Window (menu bar)
• Preferences
• Java
• Installed JRE
• Choose JRE / JDK
• Click Edit ...
• Default VM Arguments
• Add -ea

Answer 3

• Create a menu bar, select Run → Run Configurations...
• Select the Arguments tab.
• Add -ea to VM arguments .
• Click Apply .
• Click Run .

Answer 4

You need to go to run the configurations and add the vm arguments as "-enableassertions" (or) "-ea"

After that, when you run the code using the assert statement, you will see assert in action.

Answer 5

Java introduced the assert keyword, so the way to enable support at the source level is to make sure that the Java Eclipse compliance level is 1.4 or higher. (Probably the level of compliance is already higher ...)

To force the Java application launched from Eclipsed to run with the validation statement enabled, add the -ea argument to the virtual machine arguments on the Arguments tab in the launchpad.