4.2.5 Text Messages Codehs Github ((better)) -

The goal is not just to print text, but to demonstrate mastery of .

// Main method for CodeHS autograder public static void main(String[] args) { // Test cases System.out.println(countOccurrences("Hello hello HELLO", "hello")); // Should print 3 System.out.println(countOccurrences("This is a test. This is only a test.", "test")); // Should print 2 System.out.println(countOccurrences("No matches here.", "xyz")); // Should print 0 }

public static String censorMessage(String message, String keyword) { return message.replaceAll("(?i)" + keyword, "***"); } 4.2.5 text messages codehs github

In this article, we will dissect the problem. We will explain what the assignment asks for, provide a clean solution (commonly found in popular GitHub repositories), and most importantly, walk through why the code works so you can actually learn the concept—not just copy-paste.

The keyword refers to a specific programming exercise in the CodeHS "Introduction to Computer Science in Python" (or Java) curriculum. In this lesson, students are typically tasked with simulating a basic text messaging interface or processing message strings using methods like concatenation, indexing, or basic object-oriented principles. The goal is not just to print text,

This requires checking that characters before and after the match are not letters (using regex or Character.isLetter ).

if (index != -1) { count++; // Increment counter index += lowerKeyword.length(); // Move past this match } } We will explain what the assignment asks for,

Is there a specific (like the "receiver" vs "recipient" naming) that is confusing?