Create a class named Package with data fields for weight in ounces, shipping method, and shipping cost. The shipping method is a character: A for air, T for truck, or M for mail. The Package class contains a constructor that requires arguments for weight and shipping method. The constructor calls a calculateCost() method that determines

the shipping cost, based on the following table:

Weight (oz.)	Air ($)	Truck ($)	Mail ($)
1-8	2.00	1.50	.50
9-16	3.00	2.35	1.50
17 and over	4.50	3.25	2.15

The Package class also contains a display() method that displays the values in all four fields. Create a subclass named InsuredPackage that adds an insurance cost to the shipping cost, based on the following table:

Shipping Cost Before Insurance ($)	Air ($)
0-1.00	2.45
1.01-3.00	3.95
3.01 and over	5.55

Write an application named UsePackage that instantiates at least three objects of each type (Package and InsuredPackage) using a variety of weights and shipping method codes. Display the results for each Package and InsuredPackage. Save the files as Package.java, InsuredPackage.java, and UsePackage.java.