Eclipse does not recognize "The default keyword" and "Lamda expression."

Hi guys, I just started to learn Java, so I don't know much. I have a very annoying problem with Eclipse (I have the latest version installed). For some reason, whenever I use the "default" keyword in an interface, it gives me an error similar to "Default token syntax error", I deleted the "default" keyword, the error disappeared. The same with 'Lamda Expression' as well, I have this object as this Actions myActions =-> () {System.out.print ("Blah blah blah") ;};}   , Eclipse also displays the error message similar to "the body of the method expected after (), delete"->" I checked the version of Java that I have, it is also the most recent, I don't know what it is bad here, any suggestions are greatly appreciated. I thank very you much for your time and your help.

It happened because I used the line tool of command rather than running using Eclipse. The two image links show errors in Eclipse.

No - it happened for the reasons that I said:

Where variable number IS called 'AnimalName' in this interface - that's the problem: not the word "default".

You can not refer to objects that do not exist.

This interface code will not compile from the command line or from an IDE, because it contains ERRORS.

public interface Actions {}

void Breathe();

default void run() {}

System.out.println ("can run 10 miles without stopping!" + AnimalName);

}

}

Where do you want that Java to get the value of "AnimalName" of? It does not exist anywhere. You set in another class as follows:

public String AnimalName;

This means that it is a variable "instance". Impossible to refer to instance except as part of an "instance" variables The interface has NO instance of the Animal.

Tags: Java

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