Scenario and Summary

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Scenario and Summary 

 In this lab you will create a single program that creates and reads a sequential file.

  

Deliverables

Program files for each of the following two programs

  1. GuessGame 
  2. Text File I/O 

At the beginning of ALL your programs, put a comment box that includes the program name, your name, and a brief description of the program. 

Example: 

/***********************************************************************
Program Name: ProgramName.java
Programmer’s Name: Student Name
Program Description: Describe here what this program will do
***********************************************************************/ 

How to submit your assignment: 

  1. The programs MUST have the same names as the assignment      title. 
  2. Each Java source file (*.java) must include a      corresponding class file (*.class) program as evidence of success. 
  3. In addition to the program source code files and byte      code files, put all your program source code files and screen shots of      your program output files into a Word document. 
  4. You must use a zipped folder to send your weekly      assignment to the Dropbox. Do not send subfolders within your zipped      folder. Place ALL of the .java and .class files for the week into the one      zipped folder. The zip folder should be named:      CIS355A_YourLastName_iLab_Week5, and this zip folder will contain all the      weekly programming assignments.

  

i L A B S T E P S 

  

STEP 1: GuessGame (20   points)

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Write a program named GuessGame.java that plays the game “guess the number” as follows: Your program chooses the number to be guessed by selecting an integer at random in the range 1–100 The program then displays the following in a label.

I have a number between 1 and 100 — can you guess my number?

Please enter your guess: ____________________

A JTextField should be used to input the guess. A JButton must be provided to allow the user to press each time a guess is entered. As each guess is input, the background color should change to either red or blue. Red indicates that the user is getting warmer, and blue indicates that the user is getting colder. A JLabel should display either Too High or Too Low to help the user zero in on the correct answer. When the user gets the correct answer, Correct! should be displayed, and the JTextField used for input should be cleared and changed to be uneditable. Also, a JButton should be provided to allow the user to play the game again. When the New Game JButton is clicked, a new random number should be generated and the input JTextField changed to be editable. A JButton must be provided to allow the user to exit the application. Also provide a count of the number of guesses the user entered when the correct number is guessed. 

Grading Rubric 

   

GuessGame

Points

Description

 

Standard header included

1

Must contain program’s name, student name, and description of   the program

 

Program compiles

1

Program does not have any error

 

Program executes

1

Program runs without any error

 

GUI contains the required   labels

2

GUI contains the label with the initial question, the label for   the input field, and the label for the Too high or Too low message

 

GUI contains input text   field for the guess

2

GUI contains the input field for entering the guess

 

GUI contains the Guess, New   Game, and Exit buttons

3

GUI contains the Guess button, New Game button, and Exit button

 

Each button handles the   corresponding events properly

6

Each button handles and processes its corresponding behavior

 

Program displays the   correct output

4

Program displays the correct messages, changes the colors   appropriately, and displays the count of guesses

 

Subtotal

20

  

STEP 2: Text File I/O (20   points)

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Write a program called TextFileIO.java to create a file named numbers.dat. Then create an algorithm that writes all even numbered integers from 1 to 100, separated by a comma. After the file has been created, close and reopen the file and display the results to the screen. After the results have been displayed append the odd number integers from 1 to 100, separated by a comma to the end of the file. Reopen the file and display the results. The contents of the file should be the even numbers from 1 to 100 separated by a comma followed by the odd number from 1 to 100 separated by a comma. The output of this program would be something like the following 

2,4,6,8,10,12,14,……,98,100
2,4,6,8,10,12,14,……,98,100,1,3,5,7,9,……..97,99 

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