MultiInheritance.java

package vn.nvanhuong.java_lab;

//Inheritance from defined default methods
interface Foo{
	default void method() {
		System.out.println("Foo");
	};
}

interface Bar{
	default void method() {
		System.out.println("Bar");
	};
}

class MyClass implements Foo, Bar{

	@Override
	public void method() {
		Foo.super.method(); //compiler forces to explicitly define this if inheritance
	}
	
}

//Inheritance from defined static methods
class StaticFoo{
	static void staticMethod() {
		System.out.println("StaticFoo");
	}
}

class StaticBar extends StaticFoo{
	static void staticMethod() {
		System.out.println("StaticBar");
	}
}

class MyStaticClass extends StaticBar{
	static void myStaticMethod() {
		staticMethod(); //default -> uses from direct parent
		StaticFoo.staticMethod(); //users must explicitly defines if inheritance
	}
}

//Result
public class MultiInheritance {
	public static void main(String[] args) {
		MyClass myClass = new MyClass();
		myClass.method(); 
		//Foo
		
		MyStaticClass.myStaticMethod(); 
		//StaticBar 
		//StaticFoo
	}
}