Question

Name Cases: Store a person’s name in a variable, and then print that person’s name in lowercase, uppercase, and titlecase.

Short answer

The name in lowercase is 'alice johnson', in uppercase is 'ALICE JOHNSON', and in titlecase is 'Alice Johnson'.

Step-by-step solution

Store the Name

First, select a name you want to work with and store it in a variable. Let’s choose the name "Alice Johnson" and store it in a variable called `name`. In Python, you would write: `name = "Alice Johnson"`.

Print in Lowercase

Convert the name to lowercase using the `.lower()` method. This will ensure all the letters are in lowercase. In Python, use: `print(name.lower())`. The output will be `"alice johnson"`.

Print in Uppercase

Convert the name to uppercase using the `.upper()` method, which capitalizes all the letters. In Python, write: `print(name.upper())`. The output will be `"ALICE JOHNSON"`.

Print in Titlecase

Convert the name to titlecase using the `.title()` method, which capitalizes the first letter of each word. In Python, use: `print(name.title())`. The output will be `"Alice Johnson"`.

Key concepts

Lowercase Conversion

In Python, converting a string to lowercase is quite easy. The `.lower()` method is used to transform all the characters in a string to lowercase.
This method is particularly useful in situations where you need standardized text, unaffected by case sensitivity, for example when comparing user input with stored data.

Using `.lower()` is straightforward:

• Select your text or string variable.
• Call the `.lower()` method on it.
• Print or store the resulting string.

For instance, if you have the string `name = "Alice Johnson"`, executing `print(name.lower())` will result in `"alice johnson"`.
Here, every letter is converted to lowercase, simplifying comparison or storage when case uniformity is essential.

Uppercase Conversion

Uppercasing a string in Python can be done using the `.upper()` method. This method converts every character in your string to uppercase.
Such transformation is handy when you need to create emphatic text or manage formats where uppercasing is required, like certain headings or acronyms.

Here’s how you can make use of the `.upper()` method:

• Select the string or text you need in uppercase.
• Apply the `.upper()` method to it.
• Output or save the modified string.

With our example, if you have `name = "Alice Johnson"`, performing `print(name.upper())` will give you `"ALICE JOHNSON"`.
All letters are converted to uppercase, which provides a uniform and dominant appearance.

Titlecase Conversion

Titlecase conversion in Python is performed using the `.title()` method. This method is used to convert the first character of each word in your string to uppercase, while the rest are changed to lowercase.
This format is ideal for titles or headings where each word’s first letter needs to be capitalized for neatness and readability.

To apply titlecase formatting:

• Choose the string you wish to format.
• Invoke the `.title()` method upon it.
• Display or store the formatted string.

For example, using the string `name = "Alice Johnson"`, executing `print(name.title())` results in `"Alice Johnson"`.
Here, both "Alice" and "Johnson" have their initial letters capitalized, perfect for typical use in names or book titles.