Solution 2: Composite Data Types

Problem 1: Solution

Here's the updated code that separates the fields of a record based on the # character:

Code explanation

• Line 49: Here, csvwriter.Comma = '#', the default field delimiter for the CSV data, is changed from a comma (,) to a hash (#) symbol. This change will ensure that each field of a record in the CSV file is separated by a # symbol.

• Line 51: temp := []string{row.Name, row.Surname, row.Number, row.LastAccess} creates an array of strings temp, which stores the values of the fields of a record. This line ensures that the fields of a record are separated by a # symbol when written to the CSV file.

• Line 74: line := strings.Split(line, "#") splits the fields of a record in the input CSV file based on the # symbol. This line ensures that the fields of a record are properly separated and stored in the line array.

Following is the output of the code above:

Problem 2: Solution

Here’s a sample implementation in Go ...