Print person1's kids, call the incNumKids () method, and print again, outputting text as below. End each line with a newline. Sample output for below program with input 3:

The program to this question can be given as follows:

Program:

class Person_details

{

int num_Kids; / /defining integer variable

void Set_Num_Kids (int persons_Kid) / /defining method set_Num_Kid

{

num_Kids = persons_Kid; //holding value in num_Kids variable

}

void incNumKids () / /defining method incNumKids

{

num_Kids = num_Kids + 1; / /incresing value of num_Kids variable by 1

}

int get_Num_Kids () / /defining method get_Num_Kids

{

return num_Kids; //return value of num_Kids variable

}

}

public class Main / /defining class Main

{

public static void main (String [] args) / /defining main method

{

int persons_Kid=3; / /defining integer variable persons_Kid

Person_details p1 = new Person_details (); / /creating Person_details class Object

p1. Set_Num_Kids (persons_Kid); / /calling method Set_Num_Kids.

System. out. println (p1. get_Num_Kids ()); / /calling get_Num_Kids method and print value

p1. incNumKids (); / /calling incNumKids method

System. out. println (p1. get_Num_Kids ()); //calling get_Num_Kids method and print value

}

}

Output:

3

4

Explanation:

In the above program code, two-class is defined that are "Person_details and Main", inside the Person_details class one integer variable num_Kids, and three method that are "Set_Num_Kids, incNumKids, and get_Num_Kids" is defined, in which first two method is used to hold a value and the third method is used for return a value.

Then the Main class is defined, inside this class main method is declared, in this method, an integer variable persons_Kid is defined, that holds a value that is "3". In the next line, Person_details class object is created and call function and to print return function value the print function is used.