Questions 62 and 64

Question 62:

import java.util.*;
public class question62
{
    public static void main(String [] args)
    {
        scanner1();
    }
    public static void scanner1()
        {
           Scanner variableA = new Scanner(System.in); //scanner for variable a
           System.out.print("Give me a value for variable a. ");
           double a = variableA.nextDouble();
           System.out.println();
           Scanner variableB = new Scanner(System.in); //scanner for variable b
           System.out.print("Give me a value for variable b. ");
           double b = variableB.nextDouble();
           System.out.println();
           Scanner variableC = new Scanner(System.in); //scanner for variable c
           System.out.print("Give me a value for variable c. ");
           double c = variableC.nextDouble();
           System.out.println("One of the answers is " + ((-b+(Math.sqrt(((b*b)-(4*a*c)))))/(2*a))); //formula for one of quadratic answers
           System.out.print("The other answer is " + ((-b-(Math.sqrt(((b*b)-(4*a*c)))))/(2*a))); //formula for the other quadratic answer
           //the formulas work for the first 2 inputs in question 62
           //when the third set of inputs are inserted, it doesn't work (outputs "NaN" because it gives imaginary numbers)
        }
}

Question 64:

public class main64 //main class; class Point is an object of main64
{
   public static void main(String[] args)
   {
       System.out.println("The point is (" + object1.scanner() + "," + object1.scanner2() + ")"); //output for one of the points
       System.out.println("The second point is (" + object2.scanner3() + "," + object2.scanner4() + ")"); //output for the other point
}
}

import java.util.*;
public class object1 //object of Point, which is an object of class main64; scanner for one of the 2 points inputted by the user
{
    public static int scanner()
    {
        Scanner coordinate = new Scanner(System.in); //scanner for x coordinate
        System.out.println("Type in the x coordinate.");
        int x = coordinate.nextInt();
        return x;
    }
    public static int scanner2()
    {
        Scanner coordinate2 = new Scanner(System.in); //scanner for y coordinate
        System.out.println("Type in the y coordinate.");
        int y = coordinate2.nextInt();
        return y;
}
}

import java.util.*;
public class object2 //object of Point, which is an object of class main64; scanner for the other point inputted by the user
{
    public static int scanner3()
    {
        Scanner coordinate = new Scanner(System.in); //scanner for x coordinate
        System.out.println("Type in another x coordinate.");
        int x = coordinate.nextInt();
        return x;
    }
    public static int scanner4()
    {
        Scanner coordinate2 = new Scanner(System.in); //scanner for y coordinate
        System.out.println("Type in another y coordinate.");
        int y = coordinate2.nextInt();
        return y;
}
}