IN JAVA

Write a class called PocketChange that models a handful of change you might find in your pocket. The class has the following specifications:
Instance Variables - all instance variables are private

o int toonies - the number of toonies in the user's pocket o int
loonies - the number of loonies in the user's pocket o int
quarters - the number of quarters in the user's pocket o int
dimes - the number of dimes in the user's pocket o int nickels -
the number of nickels in the user's pocket o int pennies - the
number of pennies in the user's pocket Methods:

o PocketChange() - default constructor assigns 0 as a default value to all instance variables.

o PocketChange(toonies, loonies, quarters, dimes, nickels, pennies) - sets the values of all the instance variables to the programmer-specified parameter values.

o Accessor and mutator methods for each instance variable - all coin values must be 0 or positive values. Exceptions should be thrown if an attempt is made to set an instance variable to a negative value.

o calcAmount() - This method calculates and returns the total amount of money in the user's pocket, based on the values in each of the instance variables.

o toString() - returns a String with the following format:

o Toonies: t o Loonies: L o Quarters: q o Dimes: d

o Nickels: n Pennies: p where t, L, q, d, n, and p are the number of toonies, loonies, quarters, dimes, nickels and pennies. 

1. Create a Java class named Package that contains the following:
a. Package should have three private instance variables of type double named length, width, and
height.
b. Package should have one private instance variable of the type Scanner named input, initialized
to System.in.
c. No-args (explicit default) public constructor, which initializes all three double instance variables to
1.0.
d. Initial (parameterized) public constructor, which defines three parameters of type double,
named length, width, and height, which are used to initialize the instance variables of same name.
e. Public copy constructor, with a parameter of type Package, used to duplicate an
existing Package object.
f. Three public void methods named inputLength, inputWidth, and inputHeight. Each method
will prompt the user for the appropriate property, and input a double value using
the Scanner object input to initialize the instance variables
g. A public void method named displayDimensions which prints the dimensions as length X width X
height (each value separated by a “ X “).
h. A public method of type double named calcVolume that calculates the volume and returns the
result as a double value.

(a) Which variables are in scope at the point given by the comment /* Point 1 */? For each variable you list, indicate whether it is an instance variable, a formal parameter, or a local vari- able.

(b) Which variables are in scope at the point given by the comment /* Point 2 */? For each variable you list, indicate whether it is an instance variable, a formal parameter, or a local vari- able.