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    <p>@Evan a class is a generalized container for your things. A car, a person, a point (in your case).</p> <p>Everytime you want to "create" one or more object of your defined class, you instantiate them:</p> <pre><code>Person evan = new Person(); Person rob = new Person(); </code></pre> <p>both of us are person, you don't really need to define class <code>Person1</code> and <code>Person2</code>!</p> <p>And in a class you should define the methods used to "relate" to other similar objects. For example:</p> <pre><code>// In Person.java public void greet(Person p) { System.out.println("My name is "+this.name+". Nice to meet you +"p.getName()); } // In main rob.greet(evan); // it now gives compile errors of course but take the point :P </code></pre> <p>What you want to achieve is to create a better and more complete <code>Point</code> class with all the methods you want to use. In the end, just initialize more <code>Point</code> objects (same class!) in your main and play with them.</p> <p>Hope it helps :)</p> <p><strong>EDIT</strong></p> <p>Ok, perhaps I've got what your homework wants you to perform.</p> <p>A "parameter-less" method <code>measureDistance()</code> should make you wonder <em>one</em> important thing: "distance FROM which point????".</p> <p>Obviously, if the function takes no parameters all the information needed to that calculus must be in the object which calls it. Don't you think?</p> <p>So, you probably want to achieve a secondary class (if you really need to define it as <code>Point2</code> it's ok, but change that name because it's confusing) which can take a <code>Point</code> in its constructor (saving this information in itself) and then use that Point to measure distance from it.</p> <p><strong>Example</strong></p> <pre><code>public class Point2{ private int a; private int b; private Point startingPoint; public Point2(int a, int b, Point p){ this.a = a; this.b = b; startingPoint = p; } // Computes the distance from starting point to this public double measureDistance(){//it takes no parameter. return startingPoint.distanceTo(a, b); } /* if you can't edit distanceTo() it gets a little verbose but you must create a Point with Point2 coordinates - remember this example when you will study Inheritance public double measureDistance() { Point endingPoint = new Point(a, b); return startingPoint.distanceTo(endingPoint); } */ } </code></pre>
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    1. COThank you for your input Rob. which can take a Point in its constructor (saving this information in itself) and then use that Point to measure distance from it.... Can you show me an example of it?
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    2. COI would have edited the first function `distanceTo(Point p)` in `distanceTo(int x, int y)` because when you want to use it from your `NewClass.measureDistance()` you can't use a Point. I'll edit my answer with a code example
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    3. COThanks Rob! I will wait for your example =)
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