Let A = {5, 6, 7, 8, 9} and let set B = {x| x is a natural number greater than 8}.  Determine whether the following is true or false.

Given a movie clip that contains an animation sequence spanning 10 frames within its own Timeline, when that clip is used in a document, its 10 frames occupy 10 frames in the document's Timeline.

Answer the following statement true (T) or false (F)

A bank wants to show its customers how much they would need to invest to achieve a specified financial goal (future value) in 5, 10, 15, 20, 25 or 30 years. Users must provide their financial goal (the amount of money desired after the specified number of years has elapsed), an interest rate and the length of the invest- ment in years. Create an application that calculates and displays the principal (initial amount to invest) needed to achieve the user’s financial goal. Your application should allow the user to invest money for 5, 10, 15, 20, 25 or 30 years. For example, if a customer wants to reach the financial goal of $15,000 over a period of 5 years when the interest rate is 6.6%, the customer would need to invest $10,896.96 as shown in Fig. 10.28.

a) Copying    the   template  to   your   working   directory.   Copy   the   C:\Examples\Tutorial10\Exercises\PresentValue directory  to  your   C:\SimplyJava directory.
b) Opening the template file. Open  the PresentValue.java file in your text editor.
c)  Customizing the JSpinner. You must customize the JSpinner to display the number of years. The name  of this JSpinner is yearsJSpinner. This JSpinner should  dis- play every multiple  of 5 from 0 to 30, inclusive. Modify line 83 so that the initial value in the JSpinner is 0, the minimum  value is 0, the maximum  value is 30 and the step size is 5. In line 84, insert code to set the bounds  property to 130, 95, 100, 20.
d) Customizing the JTextArea. You must customize the JTextArea that will display the various amounts needed on deposit.  The name of this JTextArea is amountNeededJ- TextArea. Insert  a blank  line at line 94. On  line 95, insert  code  to set the  bounds  property to 20, 155, 320, 115. On  the  next  line, insert  code  to set amountNeeded- JTextArea’s editable property to false.
e)  Retrieving input from a JSpinner. In line 133, access the JSpinner’s value property and use the ( Integer ) cast to convert  the result to an object of type Integer. Store the result  in Integer object  integerObject. Insert  a blank  line at line 133. On line  134, retrieve the  int data  in integerObject, and  store  this  data  in int variable
years.
f)  Completing a for statement  header. In line 140 you will see a for statement header with only two semicolons.  Before  the first semicolon,  declare  and initialize variable  counter to 5. Before  the second semicolon,  enter  a loop-continuation condition that will cause the for statement to loop until counter has reached the number of years specified by the user. After  the second semicolon,  enter  the increment of counter so that the for statement executes  for every fifth year.
g) Calculating present values. You will now calculate the amount needed to achieve the future  value  for each  five-year  interval.  To do this, you will need  to implement the following formula  within the for statement:

p = a / (1 + r) n

where
p is the amount needed to achieve the future  value
r is the annual  interest rate
n is the number of years
a is the future  value amount (the amount the user would like to have after n years)

In lines 142–143, use the Math.pow method (as well as the variables  defined  for you in lines 129 and 131) to calculate  the present value needed for the current number of years. Use two lines for clarity. In lines 144–145, use the append method to output the present value  calculated in the  application’s JTextArea. Use  the  DecimalFormat object (dollars) created for you in line 137. Use two lines for clarity.

h) Saving the application. Save your modified  source code file.
i)  Opening  the Command Prompt window  and changing directories.  Open  the Com- mand Prompt window by selecting  Start > Programs > Accessories  > Command Prompt.  Change   to  your working directory by typing cd C:\SimplyJava\PresentValue.
j)  Compiling the application.  Compile   your application by typing javac PresentValue.java.
k) Running  the completed application. When  your application compiles correctly,  run it by typing  java PresentValue. Input  a future  value,  interest rate and a number of years, then click the Calculate JButton. View the results to ensure that the correct number of years is displayed,  and that the initial deposit results are correct.
l)  Closing  the application. Close your running application by clicking its close button. m) Closing  the Command Prompt  window.  Close the Command Prompt window by clicking its close button.