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i have got applikation in eclipse count rectangel, height, width points (p1,p2,p3,...,p10).
my points printed this:
point@659e0bfd, point@2a139a55, point@15db9742, point@6d06d69c, point@7852e922, point@4e25154f, point@70dea4e, point@5c647e05, point@33909752, point@55f96302 could show me how should looks like? don't these tostring method. rest of code good?
import java.util.arraylist; import java.util.list; public class app { //new public class app public static void main(string[] args) { point p1 = new point(10.681,-48.857); // new points (x,y) point p2 = new point(96.980,20.724); point p3 = new point(66.647,-66.558); point p4 = new point(-2.674,-58.571); point p5 = new point(40.11,-12.342); point p6 = new point(27.782,46.809); point p7 = new point(54.759,-46.709); point p8 = new point(-33.89,-90.787); point p9 = new point(15.84,-67.553); point p10 = new point(19.481,51.331); list<point> list1 = new arraylist<point>(); // create arraylist , add points list1.add(p1); list1.add(p2); list1.add(p3); list1.add(p4); list1.add(p5); list1.add(p6); list1.add(p7); list1.add(p8); list1.add(p9); list1.add(p10); public string tostring() { return point; } new boundingbox(list1); double c = boundingbox.height(); double d = boundingbox.width(); system.out.println("das array beinhaltet die punkte" + list1 ); // prints: "das array beinhaltet die punkte" , list system.out.println("die boundingbox hat die hohe " + c + " und die breite " + d + "\n" ); // prints height , width system.out.println("der maximale punkt der bbox betragt (" + boundingbox.getmaxpoint() +")." ); // prints: system.out.println("der minimale punkt der bbox betragt (" + boundingbox.getminpoint() +")." ); // prints: } } boundingbox
import java.util.list; public class boundingbox { //new class boundingbox private static point minpoint; //new private static point maxpoint; public boundingbox(list<point> manypoints) { double minx = manypoints.get(0).getx(); double maxx = manypoints.get(0).getx(); double miny = manypoints.get(0).gety(); double maxy = manypoints.get(0).gety(); (int = 0; < manypoints.size(); i++) { point test = manypoints.get(i); test.getx(); if (test.getx() < minx) { minx = test.getx(); } if (test.getx() > maxx) { maxx = test.getx(); } if (test.gety() < miny) { miny = test.gety(); } if (test.gety() > maxy) { maxy = test.gety(); } minpoint = new point(minx, miny); maxpoint = new point(maxx, maxy); } } public static double width() { double = (maxpoint.getx() - minpoint.getx()); // calculate width return a; } public static double height() { double b = (maxpoint.gety() - minpoint.gety()); // calculate width return b; } public static point getmaxpoint() { return maxpoint; } public static point getminpoint() { return minpoint; } } point
public class point { private double x; private double y; public point(double xnew, double ynew) { x = xnew; y = ynew; } public double getx() { return x; } public void setx(double xnew) { x = xnew; } public double gety() { return y; } public void sety(double ynew) { y = ynew; } }
you should override tostring in point class.
public class point { ... @override public string tostring () { return x + "," + y; // or whatever wish display } ... } oh, , it's not clear intended here in app class :
public string tostring() { return point; } this shouldn't pass compilation. , unless trying print app instance, don't have override tostring of app.
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