我创建2个源代码文件,Shirt.java和ShirtTestArray.java使用数组创建的对象,无法调用它的方法!为什么?
我现在面临的问题是,每当我尝试访问displayShirtInformation()方法,我不能做到这一点..并得到一个错误类,接口,或枚举预期
双源文件below--
Shirt.java--
给出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();
}
}
为了以后的OO最佳实践,请将您的成员变量设置为私有的 - 或者考虑一个不可变的对象。您可能还希望将'color'char'更改为'enum',以防止数据输入错误(您的_own_代码可能成为受害者)的情况很重要?)。 –