Thread: Issues with return

Awesome, got that part working
So now I need to be able to send the coordinates to calculate every side of the polygon through sideLength1to2 and then have them use perimeter() directly after to calculate the perimeter of the translated polygon.

Is there a way to get it to have it take the coordinates or do I need to use a similar setup as with the previous?

--- Update ---

import java.lang.Math;


public class Rawr {
private double x1;
private double x2;
private double x3;
private double x4;
private double y1;
private double y2;
private double y3;
private double y4;
private double shiftX;
private double shiftY;
private double s1;
private double s2;
private double s3;
private double s4;


public Rawr(){
x1 = 0;
x2 = 0;
x3 = 0;
x4 = 0;
y1 = 0;
y2 = 0;
y3 = 0;
y4 = 0;

}

public void setValues(double newX1, double newX2, double newX3, double newX4, double newY1, double newY2, double newY3, double newY4){
x1 = newX1;
x2 = newX2;
x3 = newX3;
x4 = newX4;
y1 = newY1;
y2 = newY2;
y3 = newY3;
y4 = newY4;
}


public void translate(double shiftX, double shiftY){
x1 = (x1 + shiftX);
x2 = (x2 + shiftX);
x3 = (x3 + shiftX);
x4 = (x4 + shiftX);
y1 = (y1 + shiftY);
y2 = (y2 + shiftY);
y3 = (y3 + shiftY);
y4 = (y4 + shiftY);

}

private void sideLength1to2(double x1, double x2, double x3, double x4, double y1, double y2, double y3, double y4){
double s1 = Math.sqrt((x2 - x1)*(x2 - x1) + (y2 - y1) * (y2 - y1));
double s2 = Math.sqrt((x3 - x2)*(x3 - x2) + (y3 - y2) * (y3 - y2));
double s3 = Math.sqrt((x4 - x3)*(x4 - x3) + (y4 - y3) * (y4 - y3));
double s4 = Math.sqrt((x1 - x4)*(x1 - x4) + (y1 - y4) * (y1 - y4));
return;
}

private void perimeter(){
double p = s1 + s2 + s3 + s4;
}
public String toString(){
return "(" + x1 + "," + y1 + ")" + "(" + x2 + "," + y2 + ")" + "(" + x3 + "," + y3 + ")" + "(" + x4 + "," + y4 + ")";
}

}


Tester


public class RawrTester {
public static void main(String[] args){

Rawr testing = new Rawr();
testing.setValues(1,2,1,4,5,2,3,4);
System.out.println(testing.toString());
testing.translate(-3,5);
System.out.println(testing.toString());
Rawr testing2 = new Rawr();
testing2.setValues(1,2,1,4,5,2,3,4);
System.out.println(testing.sideLength1to2(-2,-1,-2,1,10,7,8,9) + testing2.sideLength1to2(1,2,1,4,5,2,3,4));

}

}

From this I am told that sideLength1to2 is not visible from the type Rawr. How am I to fix this when I am required to leave sideLength1to2 private?

--- Update ---

I guess my only issue is knowing how to use the private class whilst leaving it as private.