Help with plotting x-y coordinates

[Fidelcashflow]

My Assignment:

1. A point in the x-y plane is represented by its x-coordinate and y-coordinate. Design the class Point that can store and process a point in the x-y plane. You should then perform operation on a point, such as showing the point, setting the coordinates of the point, printing the coordinates of the point, returning the x-coordinate, and returning the y-coordinate. Also, write a test program to test various operation on a point.

2. Every circle has a center and a radius. Given the radius, we can determine the circle's area and circumference Given the center, we can determine its position in the x-y plane. The center of a circle is a point in the x-y plane. Design the class Circle that can store the radius and center of the circle. Because the center is a point in the x-y plane and you designed the class to derive the class Circle from the class Point. You should be able to perform the usual operation on a circle, such as setting the radius, printing the radius, calculating and printing the area and circumference, and carrying out the usual operation on the center.

I am doing #2 which requires you to do #1.

My Problem: My teacher wants us to have a graph drawn (it can be text based) and when the user enters coordinates it should correctly place an '*' at that point. So, my program completely works except for the part of it putting an '*' at the coordinates entered.
I have chosen to ask the user to enter values between 1-10 and I then display 10-1 vertically and 1-10 horizontal and the I want to place an '*' at the entered coordinate. And I think it'd be best to use arrays, but I just don't know where to begin. So any help would really be appreciated.

So the output should look something like this:

10
9
8
7
6 * (If the user entered 1 and 6 it would put an asterisk here)
5
4
3
2
1
1 2 3 4 5 6 7 8 9 10

The '1' is actually spaced in the program, just looks like that because I am using [quote].

import java.util.*;

public class Tester
{
	static Scanner console = new Scanner(System.in);
	public static void main(String[] args)
	{
		// Declare variables
		int loopDecision, xC, yC, rC;
		
		// Loop statement
		System.out.println("Enter 1 to insert your own values. " +
									"Enter 2 to use preset values.");
		loopDecision = console.nextInt();
		
		/* If 1 is chosen then it goes into the if loop.
		 * In the if loop the user will be able to set their
		 * own coordinates and radius. They will then get the
		 * area of the circle and the circumference. */
		if(loopDecision == 1)
		{
			// Ask user to input values
			System.out.println("Enter a number 1-10 for the X coordinate.");
			xC = console.nextInt();
			System.out.println("Enter a number 1-10 for the Y coordinate.");
			yC = console.nextInt();
			System.out.println("Enter the radius.");
			rC = console.nextInt();
			System.out.println();
			
			// Set the Circle class.
			Circle p = new Circle(xC, yC, rC);
			
			// Display their entered values
			System.out.println("X coordinate = " + p.getX());
			System.out.println("Y coordinate = " + p.getY());
			System.out.println();
			
			// These two for loops display the values on the side and bottom
			for(int i = 10; i > 0; i--)
			{
				System.out.println(i);
			}
			for(int i = 1; i <= 10; i++)
			{
				System.out.print(" " + i);
			}
			
			System.out.println();
			System.out.println("Radius = " + p.getR());		
			// Display the area and circle
			System.out.println("Area of the circle = " + p.area());
			System.out.println("Circumference of the circle = " + p.circumference());
		}
		
		/* In the else loop the user will be able to see
		 * the varius functions of the program. Using preset
		 * values assigned by me. */
		else
		{
			// Set the values
			Circle p = new Circle(10, 3, 5);
			System.out.println();
			
			// Display the starting values
			System.out.println("Initial x-coordinate = " + p.getX());
			System.out.println("Initial y-coordinate = " + p.getY());
			System.out.println();
			
			// These two for loops display the values on the side and bottom
			for(int i = 10; i > 0; i--)
			{
				System.out.println(i);
			}
			for(int i = 1; i <= 10; i++)
			{
				System.out.print(" " + i);
			}

			System.out.println();
			System.out.println("Initial radius = " + p.getR());
			
			System.out.println();
			System.out.println("Now changing the values.");
			System.out.println();
			
			// Set new values
			p.setX(5);
			p.setY(10);
			p.setR(4);
			
			// Display the new values
			System.out.println("X coordinate = " + p.getX());
			System.out.println("Y coordinate = " + p.getY());
			System.out.println();
			
			// These two for loops display the values on the side and bottom
			for(int i = 10; i > 0; i--)
			{
				System.out.println(i);
			}
			for(int i = 1; i <= 10; i++)
			{
				System.out.print(" " + i);
			}
			
			System.out.println();
			System.out.println();
			System.out.println("Radius = " + p.getR());
			// Show area and circumference with the new values
			System.out.println("Area of the circle = " + p.area());
			System.out.println("Circumference of the circle = " + p.circumference());
		}
	}
}

class Point
{
	// Declare variables
	private double x;
	private double y;
	
	// Empty constructor
	public Point()
	{
	}
	
	// Constructor with variables
	public Point(double x, double y)
	{
		this.x = x;
		this.y = y;
	}
	
	// Used to set the new x-coordinate
	public void setX(double x)
	{
		this.x = x;
	}
	
	// Used to set the new y-coordinate
	public void setY(double y)
	{
		this.y = y;
	}
	
	// Used to display the x-coordinate
	public double getX()
	{
		return x;
	}
	
	// Used to display the y-coordinate
	public double getY()
	{
		return y;
	}
}

import java.lang.*;

public class Circle extends Point
{
	// Declare variables
	private double r;
	
	// Empty constructor
	public Circle()
	{
	}
	
	// Constructor with variables
	public Circle(double x, double y, double r)
	{
		super(x, y);
		this.r = r;
	}
	
	// Used to set the radius
	public void setR(double r)
	{
		this.r = r;
	}
	
	// Used to return the radius
	public double getR()
	{
		return r;
	}
	
	// Calculates the area
	public double area()
	{
		return Math.PI*r*r;
	}
	
	// Calculates the circumference
	public double circumference()
	{
		return 2*Math.PI*r;
	}
}

[ocean]

Dont you need some kind of is statement when you print?

 if (i==6)

[Fidelcashflow]

Dont you need some kind of is statement when you print?

 if (i=6)

Well, I don't think an if statement would work for this kind of thing. The reason that I mentioned using arrays was because my teacher said it'd be a good way to go. But we can do it anyway we wanted. Thank you for the reply though :).

[ocean]

You need an array to store the numbers? then mabey something like.

 int[] n = {1,2,3,4,5,6,7,8,9,10};
          
            for (int i = 0; i < n.length; i++ ){
                if (i == 1){
                    System.out.print("*");
                }
               System.out.print(n [i]);
    }

Or mabey i dont understand what you want =)