import static java.lang.String.format;

public class RecordPatterns {

public static void main(String[] args) {

var p1 = new Point(1.0, 2.0);

var p2 = new Point(5.0, 6.0);

var l = new Line(p1, p2);

instanceOfExample(p1);

instanceOfExample(l);

switchExample(p1);

switchExample(l);

}

public record Point(double x, double y) {

}

public record Line(Point start, Point end) {

}

static void instanceOfExample(Object o) {

if (o instanceof Point(double x, double y)) {

System.out.printf("I have a point at %.2f,%.2f%n", x, y);

}

if (o instanceof Line(Point(double x1, double y1), Point(double x2, double y2))) {

System.out.printf("I have a line from %.2f,%.2f to %.2f,%.2f%n", x1, y1, x2, y2);

}

}

static void switchExample(Object o) {

switch (o) {

case Point(double x, double y) -> System.out.printf("I have a point at %.2f,%.2f%n", x, y);

case Line(Point(double x1, double y1), Point(double x2, double y2)) ->

System.out.printf("I have a line from %.2f,%.2f to %.2f,%.2f%n", x1, y1, x2, y2);

default -> System.out.println("no idea");

}

}

}