Programming and the Jr Language (not JJ)

Welcome to programming and Jr. Jr is a programming language designed for teaching beginners the principles of programming. It is a junior language, and provides an easy way to learn Java (tm).

To access most pages here you will need Adobe Acrobat Reader (verion 4 preferred); if you do not have it then you may get one (free) from Adobe

Some more recent (but less organized) handout pages from this semester (Spring 2000) can be found here

• Principles of Programming: an intro
  • Programming
  • Paradigms
  • Algorithms
  • Representations
  • Growing Algorithms
  • Modifying Algorithms
  • Alternative Algorithms
  • Equivalent Algorithms
  • Big Building Blocks
  • Big Gross Program

• COP: Control Oriented Programming: the Choice (If) form
  • Syntax Blocks
  • Simple Syntax
  • Choice Syntax
  • Choice Samples
  • Relation to Java
  • Nice Choice nests
  • Extended pay code
  • Problems on Choices
  • Charge, many ways

• Control Flow: the Loop (Repeat) form
  • Trace of Loop
  • Repeat Syntax
  • Repeat Examples
  • Loan Project
  • Change Project

• Data Oriented Programming: Data Flows
  • Simple Data Types
  • Flow of data
  • Real data flows
  • Integer data flows
  • Logical data flows

• State Oriented Programming
  • States and Transitions
  • State Diagrams & programs

• Data Space Programming: Defining and Using Methods
  • Make max3 from max2s
  • Syntax at top
  • Syntax of methods
  • Data Space of methods
  • Many maxes
  • Many more maxes
  • Examples of functions
  • Examples of routines
  • Examples of logical functions
  • Gross as function & routine
  • Big Pay as whole & parts
  • Side Plot Project
  • SidePlot code
  • RecursiveMethods
  • Problems on Methods
  • Solutions to Problems

• Object Oriented Programming: Classes
  • Some Class Diagrams
  • Class of ints, reals
  • The String Class: Str
  • An Account Class
  • An Employee Class
  • A Name Class
  • A Time Class
  • A Date Class
  • A Complex Class

• Converting Jr to Java (and C and C++)
  • Convert Pay to Java
  • Evolve Line By Line
  • Convert Boxes
  • From Jr to Java, C, C++
  • Math Class Diagram in Java
  • String Class Diagram in Java
  • Three Loops in Java
  • Converting Repeat to Java
  • For loop related to Repeat
  • Employee Class

Growing Here

• A previous exam: SP 99
  • Problems1,2,3
  • Problems 4,5
  • Problem 6
  • Problem 7
  • Problem 8

• Style and Standards
  • Style guidelines $
  • Style example

• Teaching Jr to Beginners
  • Paper on Teaching Jr
  • Sample program in Jr
  • Schedule of Topics

• Learning Programming with Jr
  • A gentle intro
  • A quick intro
  • A medium intro

• Hype: Features of Jr (and lack of such in Java)
  • What's wrong with Java
  • What's right with Jr

• Using the Jr web environment
  • instructions
  • screen shot
  • Output Window