FlashCard (chapter 5)

This program implements a flash card to teach addition of numbers with one digit past the decimal. Put a copy of WidgetViewer.java in your src folder, where your FlashCard program is located.

Write a program that uses a WidgetViewer object (the WidgetViewer class is available elsewhere in this Lesson).

• your program should use either a Random object or Math.random to generate two random numbers between 0.0 and 9.9 (inclusive). Each number should have a single digit to the left of the decimal point, and a single digit to the right of the decimal point. If you choose to use a Random object, google "oracle java 8 api random," click on the first link, and look up the nextInt or nextDouble methods.

To explain the operation of this program, we'll assume that our random number generator generated 6.1 and 5.6.

• display a JLabel with the text "What is 6.1 plus 5.6?"
• create an empty JTextField to hold the user's answer
• create a JButton that has the text "click after answering"
• The user should put his or her guess in the JTextField and click the JButton.
• When the button is clicked, the program should get the text from the JTextField, convert it from String to double, and create a JLabel that says either
  • That's right. Good Job, or
  • Sorry, the correct answer is 11.7

depending on whether the user input the correct number (11.7 in this case).