CODEWITHSUNDEEP
javaeclipseassertassertions
Siva Kumar Reddy G
Siva Kumar Reddy G

Reputation: 1274

How to enable the Java keyword assert in Eclipse program-wise?

How can I enable the assert keyword in Eclipse?

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

Upvotes: 65

Views: 52533

Answers (6)

Tiina
Tiina

Reputation: 4775

In case someone uses IDEA, -ea is enabled by default in some IDEA versions, but disabled in others. To manually configure it, it is under run -> edit configuration -> vm option

Upvotes: 0

kosa
kosa

Reputation: 66637

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

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

Upvotes: 2

noone
noone

Reputation: 19776

If anyone wants to enable assertions by default (in contrast to enabling them for just a single run configuration), it is possible with the following steps:

  1. Window (menu bar)
  2. Preferences
  3. Java
  4. Installed JREs
  5. Select your JRE/JDK
  6. Press Edit...
  7. Default VM arguments
  8. Add -ea

Upvotes: 49

Stephen C
Stephen C

Reputation: 718758

Java introduced the assert keyword, so the way to enable source-level support is to make sure that Eclipse's Java compliance level is 1.4 or higher. (The chances are that the compliance level is already higher than that ...)

To cause a Java application launched from Eclipsed to run with assertion checking enabled, add the "-ea" argument to the VM arguments in the launcher configuration's "Arguments" tab.

Upvotes: 2

Priyank Doshi
Priyank Doshi

Reputation: 13151

To be specific:

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

enter image description here

Upvotes: 106

Eng.Fouad
Eng.Fouad

Reputation: 117589

  1. Form the menu bar, select Run -> Run Configurations....
  2. Select Arguments tab.
  3. Add -ea to VM arguments.
  4. Click Apply.
  5. Click Run.

Upvotes: 9

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