package homeWork;
public class ShoppingBag {
private int items;
private float totalRetailCost;
private float taxRate;
public ShoppingBag(float taxRate){
this.taxRate = taxRate;
items = 0;
totalRetailCost = 0.0f;
}
// Transformer
public void place(int numItems, float theCost){
items = items += numItems;
totalRetailCost += (numItems * theCost);
}
public int getItems(){
return items;
}
public float getRetailCost(){
return totalRetailCost;
}
public float getTotalCost(){
return totalRetailCost + (1 + taxRate);
}
public String toString(){
String result = "The bag contains " + items + " items";
result += "The retail cost of items is" + totalRetailCost;
result += "The total cost = " + getTotalCost();
return result;
}
}
package homeWork;
import java.util.*;
public class MainClass {
public static void main(String[] args){
Scanner conIn = new Scanner(System.in);
ShoppingBag sb = new ShoppingBag(0.06f);
int count = 0;
float cost = 0.0f;
System.out.print("Enter count (0 to stop):");
count = conIn.nextInt();
while(count != 0){
System.out.print("Enter cost: ");
cost = conIn.nextFloat();
sb.place(count, cost);
System.out.print("Enter count (0 to stop):");
count = conIn.nextInt();
}
}
}
我已经尝试了在这里找到的所有内容，以在输入完成后返回结果。我已经完成了我的书所显示的工作，但没有得到结果。朝正确的方向轻推将是有帮助的。
您无需在任何地方打印对象。打印对象
System.out.print(sb);
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我来说两句