This commit is contained in:
louiscklaw
2025-01-31 19:15:17 +08:00
parent 09adae8c8e
commit 6c60a73f30
1546 changed files with 286918 additions and 0 deletions

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public class Coffee extends Drink{
boolean isSweet;
Coffee(String name, int price, int volume, boolean isSweet){
super(name, price, volume);
this.isSweet = isSweet;
}
@Override
public void setPrice(int price) {
// TODO Auto-generated method stub
if(price < 10)
super.setPrice(10);
else
super.setPrice(price);
}
@Override
public String toString() {
// TODO Auto-generated method stub
String sweetStr = "sweet";
if(!isSweet)
sweetStr = "not sweet";
return super.toString() + ", " + sweetStr;
}
}

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public class Drink extends Food {
protected int volume;
Drink(String name, int price, int volume){
super(name, price);
this.volume = volume;
}
@Override
public void setPrice(int price) {
if(price < 5)
super.setPrice(5);
else
super.setPrice(price);
}
@Override
public String toString() {
return super.toString() + ", volume=" + volume;
}
}

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public class Ex4 {
public static void main(String [] args) {
Food f = new Food("Rice", 3);
Drink d = new Drink("Pepsi", 7, 250);
Coffee c = new Coffee("Cappuccino", 13, 200, true);
System.out.println(f);
System.out.println(d);
System.out.println(c);
}
}

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public class Food {
protected String name;
protected int price;
public Food() {
name = null;
price = 0;
}
public Food(String name, int price) {
this.name = name;
setPrice(price);
}
public String toString() {
return "name=" + name + ", price=" + price;
}
public void setPrice(int price) {
if (price >= 0)
this.price = price;
else
this.price = 0;
}
}