solid-blog

9.java

public interface Robot {
     void run();
     void shoot();
     void swim();
     void fight();
     void walk();
 }

// company A wants to extend the Robot to add Speaking feature


public SpeakingRobot extends Robot {
     @Overrides 
     void run() {
         // .. inherits from Robot
     }
    
     @Overrides 
     void shoot() {
         // do nothing 
         // return;
     }
    
     @Overrides 
     void swim() {
          // do nothing 
         // return;
     }
    
     @Overrides 
     void fight(){
          // do nothing 
         // return;
     }
    
     @Overrides 
     void walk() {
         // .. inherits from Robot
     }
    
     @Overrides 
     void speak() {
        // code to speak
     }
 }