我有這段代碼。這段代碼運行良好。但我的意圖是將「getLeastPriceItem」方法的返回類型設置爲「Item」而不是double。 「Item」類將保持原樣,Item類中不會有任何更改。只需幫助我將返回類型設置爲Item而不是double。 在此先感謝。Java類型數組
import java.util.*;
public class ItemDemo {
public static void main(String[] args) {
Scanner sc1= new Scanner(System.in);
Scanner sc2=new Scanner(System.in);
Scanner sc3=new Scanner(System.in);
Item[] item= new Item[5];
for(int i=0;i<item.length;i++)
{
System.out.println("Enter Item Id");
int itemId=sc1.nextInt();
System.out.println("Enter Item name");
String itemName=sc2.nextLine();
System.out.println("Enter Item price");
double itemPrice=sc3.nextDouble();
System.out.println("Enter item Discount");
double itemDiscount=sc3.nextDouble();
item[i]= new Item(itemId,itemName,itemPrice,itemDiscount);
}
double minValue= getLeastPriceItem(item);
System.out.println("Least item price "+minValue);
}
public static double getLeastPriceItem(Item[] item)
{
double min;
min=item[0].getItemPrice();
for(int i=1;i<item.length;i++)
{
if(item[i].getItemPrice()<min)
{
min=item[i].getItemPrice();
}
}
return min;
}
}
class Item
{
private int itemId;
private String itemName;
private double itemPrice;
private double itemDiscount;
public Item(int itemId, String itemName, double itemPrice,double itemDiscount) {
this.itemId = itemId;
this.itemName = itemName;
this.itemPrice = itemPrice;
this.itemDiscount = itemDiscount;
}
public int getItemId() {
return itemId;
}
public double getItemPrice() {
return itemPrice;
}
public void getItemPrice(double itemPrice) {
this.itemPrice = itemPrice;
}
public double getItemDiscount() {
return itemDiscount;
}
public void setItemDiscount(double itemDiscount) {
this.itemDiscount = itemDiscount;
}
public String getName()
{
return itemName;
}
}