The document describes a method that takes three integers as parameters and returns true if one of the numbers is the midpoint between the other two. It defines a midpoint as a number that appears halfway between the other two numbers. It provides an example where 12 is the midpoint between 10 and 14. The solution provides a Java class with a main method to test the hasMidpoint method, which calculates the differences between the numbers to determine if one is the midpoint.