tep #4: calculate the numOfSiblings attribute This should only be done once per execution.public int getNumberOfSiblings(){return numOfSiblings;}

The code you provided is a method that returns the value of the `numOfSiblings` attribute. However, it is not clear from the code snippet how `numOfSiblings` is calculated.

Assuming that you have already calculated the number of siblings for a particular person object and assigned the value to `numOfSiblings`, then this method can be used to retrieve that value.

For example, if you have a `Person` class with a `numOfSiblings` attribute and a method to calculate it, your code might look something like this:

public class Person {
    private int numOfSiblings;
    // other attributes and methods for the class
    
    // method to calculate the number of siblings
    public void calculateNumberOfSiblings() {
        // implementation to calculate numOfSiblings
        // assign the calculated value to numOfSiblings
    }
    
    // method to get the value of numOfSiblings
    public int getNumberOfSiblings() {
        return numOfSiblings;
    }
}

Then, you could create a `Person` object, calculate the number of siblings, and retrieve the value using the `getNumberOfSiblings()` method:

Person john = new Person();
john.calculateNumberOfSiblings();
int numOfSiblings = john.getNumberOfSiblings();