Question

我创建了2个源代码文件， Shirt.java 和 ShirtTestArray.java

我遇到的问题是，每当我尝试访问displayShirtInformation（）方法时，我都无法做到这一点..并且出现错误类，接口或枚举 < / p>

下面给出了2个源文件 -

Shirt.java -

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();

  }
}

Answer 1

第二个类应声明为class，而不是void：

public class 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();

    }

}

Answer 2

你给了ShirtTestArray一个返回定义，说它应该是一个方法，它应该是一个类。

将'void'替换为'class'，你应该滚动。

Answer 3

语法错误为public void ShirtTestArray{而非public class ShirtTestArray{。干杯：）

使用数组创建的对象，无法调用它的方法!!为什么？

3 个答案: