which technique concept can be used to implement multiple inheritances in java

Initially it didn’t as java uses extends word for inheritance but it didn’t allow us to extend more then one class.So the concept of interface came which is like abstract class but with strictness that methods will only be declared at that place & have to be defined in inheriting class.So we can say that interface is the key to multiple interface.Ex. class A{……..}class B{…………..}For multiple interface can’t useclass C extends A B{…..}It is not supported as extends is used for single inheritance.For multiple inheritance use public interface D{……}class C extends A implements D{…..}