Question

Write a loop that counts the number of uppercase characters that appear in the string referenced by the variable mystring.

Short answer

Answer: You can determine the number of uppercase characters in a given string with the following steps: 1. Initialize a variable called `uppercase_count` with a value of 0. 2. Use a for loop to iterate through each character in the given string. 3. Inside the loop, check whether the current character is uppercase by using Python's built-in `isupper()` method. 4. If the character is uppercase, increment the `uppercase_count` variable by 1. 5. After the loop is done iterating through the characters, the value of `uppercase_count` represents the total number of uppercase characters in the given string.

Step-by-step solution

Initialize the counter

Initialize a variable called `uppercase_count` with a value of 0. This variable will be used to count the number of uppercase characters in the string. uppercase_count = 0

Iterate through the characters in the string

Use a for loop to iterate through each character in the given string (mystring). for char in mystring:

Check if the character is uppercase

Inside the loop, use an if condition to check whether the current character is uppercase. You can use Python's built-in `isupper()` method for the string data type. This method returns `True` if the character is uppercase, and `False` otherwise. if char.isupper():

Increment the counter if the character is uppercase

If the character is uppercase (i.e., if `char.isupper()` returns `True`), increment the `uppercase_count` variable by 1. uppercase_count += 1

Display the final count of uppercase characters

After the loop is done iterating through the characters in the string, print the value of `uppercase_count`. This value represents the total number of uppercase characters in the given string. print("Number of uppercase characters:", uppercase_count)