Sep 23, 2013 · Same could be done with just the data class in Kotlin, with like this: data class Point(val x: Double, val y: Double) You can access all the methods above without creating it. Something like this: val point = Point(3.0,4.0) val result = point.toString()

May 18, 2017 · Hint: when point is getting rotated 90 clockwise around the origin the following changes happen to its coordinates: xrotated = y; yrotated = -x . two accessor methods to retrieve the coordinates of the point. It should be 2 different call. these items on second one (not main class) I will call this on main class. (I do that).

Yes, look at the Point2D class. To construct it with double values, you'd use the Double constructor: Point2D myPoint = new Point2D.Double(1.0, 1.0); Note that the standard Point class extends this class.

May 13, 2015 · The Point2D class defines a point representing a location in (x,y) coordinate space. Since: 1.2. Simply put: The Point class existed since the beginning of time, and the Point2D class was introduced later. The Point class has then been "retrofitted" to also be a Point2D, and offer the getX() methods, for example.

Oct 3, 2015 · Point center = new Point(3, 3); If you wrote it like that, java goes off and tries to find a class called point and then complains because it can't find it. You need to tell it to look for Point, with a capital P. Second, Circle s = new Circle (6, 1, center); should be something like

Feb 3, 2012 · Java hashCode for a Point class. Ask Question Asked 13 years, 2 months ago. Modified 6 years, 11 months ago.

Jun 13, 2013 · In Effective Java, Josh Bloch (who wrote many of these APIs originally) states: "Prominent examples include the Point and Dimension classes in the java.awt package. Rather than examples to be emulated, these classes should be regarded as cautionary tales," and explains why those design decisions are now considered mistakes. –

May 11, 2014 · I am trying to make a Point class. I am not sure what to put in the main method and I think I have some errors in the code as well. import java.awt.*; public class Point { int x; // Each Point object has int y; // an int x and y inside.

Aug 12, 2013 · A Line has 2 Points, so any Line class will have 2 Point-attributes. Any Triangle has 3 Points, so any Triangle class will have 3 Point-attributes. You can create the constructor of these classes to ensure correct objects. public Line(Point point1, Point point2) { this.point1 = point1; this.point2 = point2; } and for the Triangle class

Oct 31, 2013 · If you use == what you are actually doing is checking if the memory address of the two Point objects is the same. In Java, all classes are derived from Object, and you can override the equals method, providing a convenient way of checking if in fact, two objects of the same Object derived class, are the same.