default method in interface runs with command prompt but not in eclipse

Question

interface G {
    default void print() {
        System.out.println("G");
    }
}
class M {
    public void print() {
        System.out.println("M");
    }
}
class GImpl extends M implements G {}
public class Wierd {
    public static void main(String[] args) {
        G g=new GImpl();
        g.print();
    }
}

i was trying to use default method in interface ,but when compile with eclipse i get error on line 2 -says delete default, but i compile and run with command prompt it runs fine,what could be the reason for this?

I suppose that only *Luna* supports [Java-8], which version you are using??? — earthmover, Jul 04 '14 at 12:31
then try the link that TAsk gave you in answer, I wish it will work for Juno. — earthmover, Jul 04 '14 at 12:36
Juno is out of the question. The earliest release you can use is Kepler SR2, but will need to additionally apply the Java 8 patch. — Marko Topolnik, Jul 04 '14 at 12:36

akash · Accepted Answer · 2014-07-04T12:32:47.083

2

Your eclipse still not using Java8 version please check it might be less than 8.
Use System.out.println(System.getProperty("java.runtime.version")); to check.
You may also need to change build path of your project and compiler level in eclipse.

AND More Important:

Installing Java™ 8 support .

edited Jul 04 '14 at 12:32

answered Jul 04 '14 at 12:27

akash

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i got this 1.8.0_05-b13,its 8 only i think – saurabh kumar Jul 04 '14 at 12:33

score 1 · Answer 2 · answered Jul 04 '14 at 12:44

It seems that you have installed Java 8 JDK but your eclipse still does not support Java 8. Eclipse Luna has support for Java 8. To change the compiler options Right Click your project>Properties>Java Compiler>Check on "Enable project specific settings">Then select Compiler Compliance level. enter image description here

default method in interface runs with command prompt but not in eclipse

2 Answers2