ambiguity problem in Java 8

• To resolve ambiguity problem in Java 8, override the conflicting method
• Now, if we want to invoke default method from any of the interfaces then call using super keyword
• For example, <interfaceName>.super.<defaultMethodName>

interface Interface1 {
    default public void foo() { System.out.println("Interface1's foo"); }
}
interface Interface2 {
    default public void foo() { System.out.println("Interface2's foo"); }
}
public class Diamond implements Interface1, Interface2 {
    public static void main(String []args) {
        new Diamond().foo();
    }
}

In this case, resolve the conflict manually by using the super keyword within the Diamond class to
explicitly mention which method definition to use:

public void foo() { Interface1.super.foo(); }