Summary  
This chapter covers how to manipulate strings using operations like slicing, concatenation, searching, replacing, and formatting to transform and analyze text. It provides practice exercises that apply built-in string methods and printing to demonstrate each concept.

General domain of usage  
Text processing

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#define CATCH_CONFIG_MAIN
#include <catch2/catch.hpp>
#include <string>

std::string censorComment(std::string comment, std::string forbiddenWord);

TEST_CASE("Censor 'stupid' in comment -> 'This movie is ***'", "[censorComment]") {
    std::string result = censorComment("This movie is stupid", "stupid");
    REQUIRE(result == "This movie is ***"); // Expected: "This movie is ***", input: "This movie is stupid"
}

TEST_CASE("Censor 'hate' in comment -> 'I *** bugs in code'", "[censorComment]") {
    std::string result = censorComment("I hate bugs in code", "hate");
    REQUIRE(result == "I *** bugs in code"); // Expected: "I *** bugs in code", input: "I hate bugs in code"
}

TEST_CASE("No censorship if word not present -> 'What a nice day'", "[censorComment]") {
    std::string result = censorComment("What a nice day", "bad");
    REQUIRE(result == "What a nice day"); // Expected: "What a nice day", input: "What a nice day"
}

TEST_CASE("Censor first occurrence only -> 'This is *** and bad again'", "[censorComment]") {
    std::string result = censorComment("This is bad and bad again", "bad");
    REQUIRE(result == "This is *** and bad again"); // Expected: "This is *** and bad again", input: "This is bad and bad again"
}

TEST_CASE("Censor word at start -> '*** code here'", "[censorComment]") {
    std::string result = censorComment("ugly code here", "ugly");
    REQUIRE(result == "*** code here"); // Expected: "*** code here", input: "ugly code here"
}

TEST_CASE("Censor word at end -> 'Code is ***'", "[censorComment]") {
    std::string result = censorComment("Code is ugly", "ugly");
    REQUIRE(result == "Code is ***"); // Expected: "Code is ***", input: "Code is ugly"
}

TEST_CASE("Empty comment -> ''", "[censorComment]") {
    std::string result = censorComment("", "bad");
    REQUIRE(result == ""); // Expected: "", input: ""
}

test.cpp

Developing a comprehensive understanding of data types is crucial when learning a programming language. This course offers an opportunity to delve deeper into data types in C++, gaining insights into how they are stored in memory. Additionally, the course covers the topic of type conversion.

Provides a foundational overview of arithmetic operations and their pitfalls, data types, and the importance of specifying types.

short, int, long, float, double, etc. are all numerical data types. You will learn about all of them as well as the pitfalls they may conceal.

Covers working with text in C++ using `char` and `string`. You'll learn how to store and manipulate characters, use string methods, index and modify strings, find text, and understand string memory management. By the end, you'll be ready to handle text efficiently in your programs.

Covers logical values with bool, functions without return values using void, and automatic type deduction with auto. It also explores type conversion, including both implicit and explicit casting, ensuring correct handling of data types.

Challenge: String Manipulation Practice

Example

Ratkaisu

Awesome!

Challenge: String Manipulation Practice

Example

Ratkaisu