public class Illustrate{private int x; private int y; public Illustrate () {x = 1; y = 2; }public Illustrate (int a) {x = a; }public void print () {System. out. println ("x = " + x + ", y = " + y); }public void incrementY () {y++; }}What does the default constructor do in the class definition above?1. Sets the value of x to 02. There is no default constructor. 3. Sets the value of x to 14. Sets the value of x to a

The answer is "Option 3".

Explanation:

In the given java code a class "Illustrate" is defined inside the class two private integer variable is defined that is "x and y". Then a default constructor is defined which use these variable for assign values. Then we create the parameterized constructor in this constructor we an integer parameter and use variable x for the assign parameter value.

In the class two function is defined that is "print and incrementY". The prints function print private variables value and incrementY function is increment the y variable value by 1. and other options are not correct that can be described as follows:

In option 1, In x variable, we assign the value that is 0. In option 2, It is not correct, because there is a default constructor. In option 4, It is not correct, because this value is set in the parameterized constructor.