Here are the methods you learned in the previous chapter. You will need some of them to complete a task.

### append
```
str.append(str2) // Adds str2 to the end of str
```


### concatenate
```
str + str2 // Concatenates str and str2
```

### insert
```
str.insert(pos, str2) // Inserts str2 to pos index
```

### replace
```
str.replace(start, n, str2) // replaces n characters starting from start with str2
```

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.

This section 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 in C++. In this section, you will learn about all of them as well as the pitfalls they may conceal.

This section will guide you on char and string data types to work with text in C++. You will learn many handy string methods to make using strings easier.

This section focuses on the bool data type, the use of void and auto, and covers type conversion, which is frequently used in C++.

Changing The String Practice

append

concatenate

insert

replace