What is the best way to implement constants in Java? [closed]

Answer 1

What is the difference

1.

public interface MyGlobalConstants {
    public static final int TIMEOUT_IN_SECS = 25;
}

2.

public class MyGlobalConstants {
    private MyGlobalConstants () {} // Prevents instantiation
    public static final int TIMEOUT_IN_SECS = 25;
}

and using MyGlobalConstants.TIMEOUT_IN_SECS wherever we need this constant. I think both are same.