Java Can';I don’我不能编译这个,我做错了什么?
好的,我可以看到第33行的“setUniqueType”和第50行的“ItemDetails”是需要更正的,但是我不知道它有什么问题以及如何修复。请帮忙,这样我就可以开始我的计划了 MAINJava Can';I don’我不能编译这个,我做错了什么?,java,arrays,Java,Arrays,好的,我可以看到第33行的“setUniqueType”和第50行的“ItemDetails”是需要更正的,但是我不知道它有什么问题以及如何修复。请帮忙,这样我就可以开始我的计划了 MAIN package inventory4; import java.util.Scanner; import java.util.Arrays; import javax.swing.JOptionPane; public class RunApp { public static void main(S
package inventory4;
import java.util.Scanner;
import java.util.Arrays;
import javax.swing.JOptionPane;
public class RunApp
{
public static void main(String[] args)
{
Scanner input = new Scanner(System.in);
ItemDetails theItem = new ItemDetails();
int number;
String Name = "";
String Type = "";
String sNumber = JOptionPane.showInputDialog(null,"How many items are to be put into inventory count?: ");
number = Integer.parseInt(sNumber);
ItemDetails[] inv = new ItemDetails[number];
for (int count = 0; count < inv.length; ++count)
{
Name = JOptionPane.showInputDialog(null,"What is item " + (count + 1) + "'s name?");
theItem.setName(Name);
Type = JOptionPane.showInputDialog(null,"Enter " + Name + "'s product type");
theItem.setUniqueType(Type);
String spNumber = JOptionPane.showInputDialog(null,"Enter " + Name + "'s product number");
double pNumber = Double.parseDouble(spNumber);
theItem.setpNumber(pNumber);
String sUnits = JOptionPane.showInputDialog(null,"How many " + Name + "s are there in inventory?");
double Units = Double.parseDouble(sUnits);
theItem.setUnits(Units);
String sPrice = JOptionPane.showInputDialog(null,Name + "'s cost");
double Price = Double.parseDouble(sPrice);
theItem.setPrice(Price);
inv[count] = new ItemDetails(Name, Price, Units, pNumber, Type);
}
for (int i = 0; i < inv.length; ++i)
{
JOptionPane.showMessageDialog(null, "Product Name" + inv[i].getName());
JOptionPane.showMessageDialog(null, "Product Type" + inv[i].getUniqueType());
JOptionPane.showMessageDialog(null, "Product Number" + inv[i].getpNumber());
JOptionPane.showMessageDialog(null, "Amount of Units in Stock" + inv[i].getUnits());
JOptionPane.showMessageDialog(null, "Price per Unit" + inv[i].getPrice());
JOptionPane.showMessageDialog(null, String.format("Total cost for %s in stock: $%.2f", inv[i].getName(), inv[i].calculateTotalPrice()));
JOptionPane.showMessageDialog(null,String.format("Restocking fee for %s is $%.2f", inv[i].getName(), inv[i].calculateRestock()));
String combinedData = inv[i].toString();
if(i == (inv.length -1)){
String lastItem = String.format("\nTotal Cost for all items entered: $%.2f\n", Items.getCombinedCost(inv));
combinedData = combinedData + lastItem;
JOptionPane.showMessageDialog(null, combinedData);
}else{
JOptionPane.showMessageDialog(null, combinedData);
}
} //end for
} //end main
} //end class
编译错误:
RunApp.java:31: cannot find symbol
symbol : method setUniqueType(java.lang.String)
location: class ItemDetails
theItem.setUniqueType(Type);
^
RunApp.java:48: cannot find symbol
symbol : constructor ItemDetails(java.lang.String,double,double,double,java.lan
g.String)
location: class ItemDetails
inv[count] = new ItemDetails(Name, Price, Units, pNumber, Type);
^
2 errors
类型
,或者在项目构造函数的末尾添加一个字符串参数,或者使用五个参数创建一个ItemDEtails构造函数public ItemDetails(String productName, double productNumber, double unitsInStock, double unitPrice
super(productName,productNumber,unitsInStock,unitPrice);
}
关于ItemDetails:看起来你的ItemDetails构造函数,从Items继承而来,只需要4个参数,你要传递5个参数。当你说有错误时,请发布你的
javac
所说的确切内容。“请帮帮忙,这样我就可以开始我的程序了…”对不起,我知道已经晚了,你很累,很沮丧,你最不需要的就是一些混蛋(我)在网上取笑你,但是。。。我认为搬进来看节目是个坏主意。信息技术它永远不会成功……给初学者的教训是:错误消息告诉我们问题的原因。通常很多。当你理解了信息,从而也理解了原因,那么解决方案就应该不言自明了。不理解它们并不意味着你可以忽略它们。请始终在问题中包含任何错误消息。通过这种方式,您可以用外行术语解释错误消息,这样您就可以了解它们,从而了解问题的原因,并最终看到解决方案。当你不理解一个中文短语时,你在寻求帮助时也不会忽略它,是吗?ClassItemDetails
没有方法setUniqueType
。另外,ItemDetails
也没有接受参数名称、价格、单位、pNumber、,键入
@lost我添加了如何链接构造函数。实际上,您已经在为默认构造函数执行此操作。
RunApp.java:31: cannot find symbol
symbol : method setUniqueType(java.lang.String)
location: class ItemDetails
theItem.setUniqueType(Type);
^
RunApp.java:48: cannot find symbol
symbol : constructor ItemDetails(java.lang.String,double,double,double,java.lan
g.String)
location: class ItemDetails
inv[count] = new ItemDetails(Name, Price, Units, pNumber, Type);
^
2 errors
public ItemDetails(String productName, double productNumber, double unitsInStock, double unitPrice
super(productName,productNumber,unitsInStock,unitPrice);
}