update,

_resources/it114105/itp3914/Lab12/Ex4/Drink.java

@@ -0,0 +1,20 @@
+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;
+    }
+}