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IB Computer Science Higher Level (Year One)

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Lesson 10.3 Developing Algorithms Using Strings

Description

In this lesson, students will learn how to develop algorithms using Strings. Students will traverse Strings using a for loop and the print.length() command. 

for(int i = 0; i < string.length(); i++)
{
    String character = string.substring(i, i+1);
}

This lesson corresponds with AP Computer Science A topic 4.3.

Objective

Students will be able to:

  • Develop an algorithm using Strings
  • Find if one or more substrings has a particular property
  • Determine the number of substrings that meet specific criteria
  • Create a new string with the characters reversed

Activities

These are all the activities included in the lesson

10.3.1 Developing Algorithms Using Strings
10.3.2 Developing Algorithms Using Strings
10.3.3 Traversing Strings
10.3.4 Replace Characters
10.3.5 Reverse String
10.3.6 Replace Letter
10.3.7 Password Checker
10.3.8 Finding Palindromes
10.3.9 Fixing Grammar
10.3.10 Teen Talk
10.3.11 String Processing Badge