📄 testinterface.java
字号:
public class TestInterface {
PetCarer pc = new Worker();
pc.feed();
}
interface PetCarer {
void feed();
void playWithPet();
}
class Worker implements PetCarer {
public void feed() {
System.out.println("Worker feed ... ");
}
void playWithPet() {
System.out.println("Worker play with pet ... ");
}
}
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