我創建2個源代碼文件,Shirt.java和ShirtTestArray.java使用數組創建的對象,無法調用它的方法!爲什麼?
我現在面臨的問題是,每當我嘗試訪問displayShirtInformation()方法,我不能做到這一點..並得到一個錯誤類,接口,或枚舉預期
雙源文件below--
Shirt.java--
給出public class Shirt {
public int shirtID = 0; // Default ID for the shirt
public String description = "-description required-"; // default
// The color codes are R=Red, B=Blue, G=Green, U=Unset
public char colorCode = 'U';
public double price = 0.0; // Default price for all shirts
public int quantityInStock = 0; // Default quantity for all shirts
public Shirt() {
}
public Shirt(int ID, String d, char c, double p, int q) {
shirtID = ID;
description = d;
colorCode = c;
price = p;
quantityInStock = q;
}
// This method displays the values for an item
public void displayShirtInformation() {
System.out.println("Shirt ID: " + shirtID);
System.out.println("Shirt description:" + description);
System.out.println("Color Code: " + colorCode);
System.out.println("Shirt price: " + price);
System.out.println("Quantity in stock: " + quantityInStock);
} // end of display method
} // end of class
ShirtTestArray.java -
public void ShirtTestArray{
public static void main(String [] args) {
Shirt [] shirtArray={new Shirt (1,"blue",'b',76.67,4),new Shirt(2,"green",'g',98.79,1),
new Shirt(3,"green",'g',34.78,90)};
shirtArray[0].displayShirtInformation();
shirtArray[1].displayShirtInformation();
shirtArray[2].displayShirtInformation();
}
}
爲了以後的OO最佳實踐,請將您的成員變量設置爲私有的 - 或者考慮一個不可變的對象。您可能還希望將'color'char'更改爲'enum',以防止數據輸入錯誤(您的_own_代碼可能成爲受害者)的情況很重要?)。 –