PIC20A HW1: GPA Calculator

PIC20A

Homework 1: GPA calculator

Assignment

This is a very very easy Homework. You are going to write a program name GPA.java to calcalate GPA.

Sample Output

Z:>java GPA
java GPA unit1 grade1 unit2 grade2 ....  calculates the GPA.

Z:>java GPA 3 A
Your GPA is 4.0

Z:>java GPA 5 A 4 B
Your GPA is 3.5555555555555554

Z:>java GPA 5 A 5 B
Your GPA is 3.5

Z:>java GPA 5 A 5 B 2 D
Your GPA is 3.0833333333333335

Z:>java GPA 5 A 5 B 2 D 3 C
Your GPA is 2.8666666666666667

Z:>java GPA 5 A 5 B 2 D 3 C 5 A
Your GPA is 3.15

Explanations

The first argument is the unit of the class, the second argument is the grade, the third argument is the unit ......
For simplicity, we always assume that the user's input is in the correct format, i.e.
- The number of arguments is an even number
- The odd arguments are the units of classes. You can assume that they are all in integer format are all positive
- The even arguments are the grades of the classes. You can assume that they must be A, B, C or D. (no A-, B+, etc etc)
A has 4 points, B has 3 points, C has 2 points and D has one point. The GPA is calculated by summation of units times points divided by the the summation of units. If you don't know how to calculate GPA, please ask me or TA.

Hint

Integer.parseInt(string) returns the integer value of the string
string.charAt(0) returns the first character of the string
Read Lecture 5.

What to submit

Call your source code file GPA.java. Put this file in your submit folder. Do not place this file inside another folder within your submit folder.

Remark

All source code submitted must contain the following information at the beginning of each file:
- Your full name
- Your student ID number
- Your PIC login ID
- Your e-mail address
- Your discussion section number and TA's name
- The assignment number and description
- Honesty pledge
Properly formatted, this information should appear as follows:(Please change the Name, Student ID, PIC ID, E-mail, Discussion
```
/** Name:        Charles Li 
  * Student ID : 000 000 000   
  * PIC ID:      ccli 
  * E-mail:      ccli@math.ucla.edu 
  * Discussion:	 1A
  * Assignment:	 hw1 
  * 
  * I, Charles Li, pledge that this is my own independent work, which  
  * conforms to the guidelines of academic honesty as described in the course  
  * syllabus.  
  * 
  */
```
If you develop your program on your home computer, make sure it compiles and runs on the lab machines before you turn it in.
Please use consistent and neat indenting in all your programs.
Please comment your program.

Solution

GPA.java