吃了一个" + food.getName

abstract class Fruits {
public abstract String getName();

}

class Human {
void eat(Fruits food) {
System.out.println("吃了一个" + food.getName());
}
}

public class Demo {
public static void main(String[] args) {
Human tom = new Human();
tom.eat(new Fruits() {
public String getName() {
return "苹果";
}
});
tom.eat(new Fruits() {
public String getName() {
return "香蕉";
}
});
}
}