CS 111: Program 1 main content

Do Programming Challenge #1: RainFall Class on page 537 of your textbook.

Sample Session

Duplicate the sample session exactly. n.m indicates user input.

Please enter the inches of rainfall for all 12 months of the year,
beginning with January

January:      1.2
February:     3.5
March:        3.6
April:        2.1
May:          6.5
June:         2.6
July:         1.0
August:       1.6
September:    -3.5
Rainfall must be 0.0 inches or more, Please re-enter: 2.3
October:      3.1
November:     3.1
December:     2.5

Total rainfall for the year:       33.10 inches
Average rainfall for this year:    2.76 inches
Month with the most rain was:      May with 6.50 inches
Month with the least rain was:     July with 1.00 inches

Programming Style Requirements

Read through the Java Programming Style Guide for expectations.

Begin every java file with the following file header:

//***********************************************************************
// Project: Program 1
// Account: cs11102_nn
//
// Author: Place your name here
// Creation date: 10/27/2004
//
// Completion time: n hours total
//
// Honor Code: I pledge that this program represents my own program code.
//   I received help from (no one) in designing and debugging my program.
//***********************************************************************

Use jGRASP's Control Structure Diagram (CSD) for indentation. Print your source code with CSD and line numbers.

What to turn in

Two source program printouts: Driver.java and RainFall.java stapled together with file header comments on both printouts
Be sure your project is saved in your u:\Program1\ folder
The assignment is due at the start of lab 2. You program must compile and produce output for you to receive any credit.
- You are allowed one late programming assignment for the quarter.

Grading Criteria

50 points maximum

5 points - User Interface
- Input prompts and output format are easy to follow (3)
- Input Validation: Do not accept negative numbers for monthly rainfall figures (2)
- Spelling, capitalization, and grammar are correct (-1 per error)
- Spacing and alignment are correct (-1 per error)
25 points - Output Correctness
- The program allows the user to enter values (doubles) representing the rainfall for each of the 12 months (5)
- The program calculates and displays the correct total rainfall for the year (5)
- The program calculates and displays the correct average monthly rainfall for the year (5)
- The program calculates and displays the month with the most rain (5)
- The program calculates and displays the month with the least rain (5)
10 points - Object Oriented Design
- The RainFall class is defined correctly with
  - Data (instance variables) are declared as private (1)
    - You only need one instance variable that stores the array of double values
    - Use local variables inside methods as needed, avoid declaring temporary variables as instance variables
  - Instance methods are declared as public, under 25 lines of code (LOC) in length, and do one thing (3)
- The Driver main method uses the Rainfall object correctly (1)
5 points - Programming Style
- Program header comments are present and complete. All files need header comments (2)
- Single-line comments are present, helpful, and sufficient (2)
  - Skip a blank line before every single-line comment
  - Align the comment with the code
  - Generally one single-line comment is needed for every four to six lines of code
- Naming conventions, alignment, and indentation are important. Read through the Java Style Guide for CS 111 expectations (1)
5 points - Creation and printout of the jGRASP Project files
- folder U:\Program1\ created correctly on your network U: drive and project files saved correctly in U:\Program1\ folder (2)
- Source printouts submitted correctly
  - Avoid line wrap in your source printout
  - Print both files with line numbers and CSD showing