package java8;
import java.util.ArrayList;
import java.util.List;
public class DefaultMethodsLesson {
public static void main(String[] args) {
List list = new ArrayList<>();
list.stream();
System.out.println(Parent.add(5, 5));
Parent parent = new Child();
parent.callPrint();
B b = new D();
b.exec();
}
}
interface Parent {
void printMessage(String message);
default void callPrint() {
printMessage("hello");
}
static int add(int x, int y) {
return x + y;
}
}
class Child implements Parent {
@Override
public void printMessage(String message) {
System.out.println(message);
}
@Override
public void callPrint() {
printMessage("test");
}
}
interface B {
default void exec() {
System.out.println("B");
}
}
interface C extends B {
default void exec() {
System.out.println("C");
}
}
class D implements B, C {
// @Override
// public void exec() {
// System.out.println("D");
// }
}