Unit6-06: Associative Arrays (Optional)

Learning Outcome

At the end of this lesson, you will be able to:

• understand and use an associative array

Review

• lists

Here is the Problem:

• Create a program called “Unicode”. Unicode is an encoding table for all the characters in the world. We will only focus on the Latin alphabet (‘A’ to ‘Z’, ‘a’ to ‘z’)  including special characters like spaces, periods, etc.

• In main():

  • It loads the unicode character set (a subset of it, just the basic Latin characters) into an associative array.

  • It then asks the user to  enter a string.

  • It calls a function called “display_in_hex()” in Python and “displayInHex()” in C++ .

• In the function “display_in_hex()” in Python and “displayInHex()” in C++:

  • It accepts 2 parameters: the user string and the Unicode dictionary

  • It displays the list of hexadecimal values that are the Unicode for each character in the string. 

• In C programming language, a Hexadecimal number is represented by preceding with "0x”. For example:

  • ‘A’ is 0x41

  • ‘Z’ is 0x5a

  • ‘a’ is 0x61

  • ‘z’ is 0x7a

  • ‘ ‘ is 0x20

Ensure the main() function catches any "bad" user input so that only "valid" input is passed to the function.

Note: The top-down design should be for the entire program. There should be a flowchart for each function.

Activity

• in groups of 2, do the following on the board for today's daily assignment:

  • Top-Down Design

  • Flow Chart

  • Pseudocode

  • Test Cases

Daily Assignment

• complete the Daily Assignment section in Hãpara Workspace for this day

  • if Hãpara is not working, make a copy of this document

  • move it to your IMH-ICS folder for this course

Extra

• recreate the same program in C++