convertDaysToWeeksAndDays()

Step 1: Understand the Problem

The first step in writing this function is to fully understand what we are being asked to do. Here, we are given a number of days and we need to convert this into a format that shows the number of weeks and the remaining number of days.

Step 2: Create a Function

The next step is to create a function that takes in an argument. In this case, the argument would be the total number of days.

public static void convertDaysToWeeksAndDays(int totalDays) {

}

Step 3: Calculate the Weeks and Days

Once we have our function, we need to calculate the weeks and days. To get the number of weeks, we need to divide the total days by 7 (since there are 7 days in a week). To get the remaining days, we simply obtain the remainder of the division.

public static void convertDaysToWeeksAndDays(int totalDays) {
    int weeks = totalDays / 7;
    int days = totalDays % 7;
}

Step 4: Printing the Result

After getting the weeks and days, the function needs to print that out in a readable format. Here, we simply print out the number of weeks, followed by the number of days.

public static void convertDaysToWeeksAndDays(int totalDays) {
    int weeks = totalDays / 7;
    int days = totalDays % 7;
    System.out.println(totalDays + " days is: " + weeks + " week(s) and " + days + " day(s)");
}

Step 5: Test the Function

The final step is to call the function with different arguments in order to test whether it works as expected.

public static void main(String[] args) {
    convertDaysToWeeksAndDays(10);
    convertDaysToWeeksAndDays(17);
    convertDaysToWeeksAndDays(31);
}

In conclusion, this Java function correctly converts a number of days into weeks and remaining days.