SE450: Types: Class as Type 2 [22/47] Previous pageContentsNext page

file:types/point2/Main.java [source] [doc-public] [doc-private]
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package types.point2;
import java.awt.Color;
final class PolarPoint {
  private final double theta;
  private final double r;
  private final Color color;
  public PolarPoint(double theta, double r, Color color) {
    this.theta = theta;
    this.r = r;
    this.color = color;
  }
  public double getX() { return r*Math.cos(theta); }
  public double getY() { return r*Math.sin(theta); }
  public Color getColor() {
    System.out.println("It's Polar!");
    return color;
  }
}
public class Main {
  private Main() {}
  public static void main(String[] args) {
    PolarPoint r1 = new PolarPoint(0,0,Color.RED);
  }
}

What is the type of r1?

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