Please enable JavaScript to use CodeHS

AP Computer Science A (Nitro)

View Syllabus Overview

Lesson 4.3 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

4.3.1 Developing Algorithms Using Strings
4.3.2 Developing Algorithms Using Strings
4.3.3 Traversing Strings
4.3.4 Replace Characters
4.3.5 Reverse String
4.3.6 Replace Letter
4.3.7 Password Checker
4.3.8 Finding Palindromes
4.3.9 Fixing Grammar
4.3.10 Teen Talk
4.3.11 String Processing Badge