stockitem.java

java编程代码

public class StockItem implements PubliclyCloneable
{
    private String name;
    private int number;

    public StockItem( )
    {
        name = null;
        number = 0;
    }

    public StockItem(String nameData, int numberData)
    {
        name = nameData;
        number = numberData;
    }

    public void setNumber(int newNumber)
    {
        number = newNumber;
    }

    public void setName(String newName)
    {
        name = newName;
    }

    public String toString( )
    {
        return (name + " " + number);
    }

    public Object clone( )
    {
       try
       {
          return super.clone( );
       }
       catch(CloneNotSupportedException e)
       {//This should not happen.
          return null; //To keep compiler happy.
       }
    }

    public boolean equals(Object otherObject)
    {
        if (otherObject == null)
            return false;
        else if (getClass( ) != otherObject.getClass( ))
            return false;
        else
        {
            StockItem otherItem = (StockItem) otherObject;
            return (name.equalsIgnoreCase(otherItem.name) 
                      && number == otherItem.number);
        }
    }
}