1. 6 – Miracle And “Hello World”
CSCI N201
Programming Concepts and Database
6 – Miracle And “Hello World”
Lingma Acheson
Department of Computer and Information Science, IUPUI

2. Programming Concepts Learn general ideas, rules
Learn programming without learning a specific language
Able to apply to many programming languages
Making learning a new language easy

3. What Is Miracle
A piece of program that is used to help understand the programming concepts
A template one can use to write programs
“The art of programming without programming”

4. Goals of Miracle Learn programming “concepts”
Concentrate on key ideas in programming
Reduce concerns about syntax
Assist in development of code
Illustrate chief ideas
Create working programs when we finish the topic!

5. Using Miracle All main ideas of programming are in menus
Each concept has some parameters
Choose a command, enter parameters at prompt
Code will be created for you automatically

6. “Hello World” Write a program that says “Hello World”
Concepts:
Make a new program
Give your program a
NAME
AUTHOR
DATE
PURPOSE
Give an output
“Hello World”
End the program
Run the program

7. Using the Miracle Summary
First column is programming concept
Second column is description
Third is parameters
Fourth describes parameters

8. STAIR and Miracle
STAIR is especially helpful when writing computer programs
STAIR steps refined to handle programming

9. S-State the Problem
What is the task? S:

10. T-Tools I Look at the first column of the Miracle Summary
Look at each tool and decide if you think it will be promising
Write down the tool name if you think it applies T:

11. A – Algorithm
For each tool, write a sentence like the one in the second colum of the guide
Fill in parameters with your own values
Write any way you wish as long as all parameters are described A:

12. I – Implementation
Use Miracle to enter the data. You'll be asked for each parameter I:

13. R-Refinement What went wrong? Can you find the problem?
Can you repair it?
Repeat until successful