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Phantom method?

开发者 https://www.devze.com 2023-03-24 15:06 出处:网络
I was getting the following error message while trying to debug my code: Not able to submit breakpoint MethodBreakpoint [tarea11.Main].contarCapas \'(Ljava/util/TreeSet<tarea11/punto>;)I\', rea

I was getting the following error message while trying to debug my code:

Not able to submit breakpoint MethodBreakpoint [tarea11.Main].contarCapas '(Ljava/util/TreeSet<tarea11/punto>;)I', reason: Method 'contarCapas' with signature '(Ljava/util/TreeSet<tarea11/punto>;)I' does not exist in class tarea11.Main.

Now I realize that the contarCapas method ain't working at all, it's as if it isn't even declared.

Version 1:

package tarea11;


import java.io.File;
import java.io.IOException;
import java.util.Comparator;
import java.util.HashSet;
import java.util.Scanner;
import java.util.TreeSet;

/**
 *
 * @author darwin
 */

class punto{
    int x;
    int y;
    boolean usado;


    public punto(int x, int y) {
        this.x = x;
        this.y = y;
        this.usado=false;

    }


    static double pendiente (punto p1, punto p2){
        double M = (p2.y - p1.y) / (p2.x - p1.x);
        return M;

    }

    @Override
    public boolean equals (Object o1){

        if (o1 instanceof punto){

            punto p1 = (punto)o1;
            if (p1.x==this.x&& p1.y==this.y){

                return true;
            }
              return false;

        }

        else

            return false;

    }

    @Override
    public int hashCode() {

       String string = this.x+" "+this.y;
       return string.hashCode();

    }

}

class PointComparator implements Comparator {

    public int compare(Object o1, Object o2){

        punto p1 = (punto)o1;
        punto p2 = (punto)o2;

        if (p1.y>p2.y){
            return 1;
        }
        if(p2.y > p1.y)
        {
            return -1;
        }

        else{

            if(p1.x>p2.x){
                return 1;
            }
            return -1;
        }


    }

}

public class Main {


    static int contarCapas (TreeSet<punto> puntosOrdenados){

        int numeroDeCapas=0;

        HashSet <punto> puntosUsados = new HashSet<punto>();

        while (!puntosOrdenados.isEmpty()){

            punto p= puntosOrdenados.pollFirst();

            puntosUsados.add(p);

            //chequear contra todos los demas para hallar minArco
            double minArco=99999999;
            punto minPunto = new punto(-2001,-2001);
            double arco=0;
            for (punto siguiente: puntosOrdenados){

                if(siguiente.equals(p)){
                    continue;
                }

                arco=Math.atan2(p.y - siguiente.y, p.x - siguiente.x);
                if (arco< minArco){
                    minArco=arco;
                    minPunto = siguiente;
                }

            }

            if (puntosUsados.contains(minPunto)){

                numeroDeCapas= numeroDeCapas+1;

            }

        }

        return numeroDeCapas;

    }


    public static void main(String[] args) {

        PointComparator pointComparator = new PointComparator();

        System.out.println(Math.atan2(-1.0, 1.0));
        //System.out.println(Math.acos(cont))
        Scanner s = new Scanner(System.in);

        try{
        s = new Scanner(new File("entrada.txt"));
        } catch(IOException e){}
        int N,x,y;

        N = s.nextInt();

        while(N!=0){

            punto cebolla[] = new punto[N];

            TreeSet <punto> puntosOrdenados = new TreeSet <punto>(pointComparator);

            for(in开发者_开发百科t i=0;i<N;i++){
                x=s.nextInt(); y=s.nextInt();
                cebolla[i]=new punto(x,y); //borrar?
                puntosOrdenados.add(new punto(x,y));
            }


           int cont= contarCapas(puntosOrdenados);
           System.out.println(cont);

             if(cont%2==0){
                System.out.println("NO");
             }else{
                System.out.println("SI");
             }
             N = s.nextInt();
        }
    }


    }

version 2:

package tarea11;


import java.io.File;
import java.io.IOException;
import java.util.Comparator;
import java.util.HashSet;
import java.util.Scanner;
import java.util.TreeSet;

/**
 *
 * @author darwin
 */

class punto{
    int x;
    int y;
    boolean usado;




    public punto(int x, int y) {
        this.x = x;
        this.y = y;
        this.usado=false;

    }


    static double pendiente (punto p1, punto p2){
        double M = (p2.y - p1.y) / (p2.x - p1.x);
        return M;

    }

    @Override
    public boolean equals (Object o1){

        if (o1 instanceof punto){

            punto p1 = (punto)o1;
            if (p1.x==this.x&& p1.y==this.y){

                return true;
            }
              return false;

        }

        else

            return false;

    }

    @Override
    public int hashCode() {

       String string = this.x+" "+this.y;
       return string.hashCode();

    }

}

class PointComparator implements Comparator {

    public int compare(Object o1, Object o2){

        punto p1 = (punto)o1;
        punto p2 = (punto)o2;

        if (p1.y>p2.y){
            return 1;
        }
        if(p2.y > p1.y)
        {
            return -1;
        }

        else{

            if(p1.x>p2.x){
                return 1;
            }
            return -1;
        }


    }

}

public class Main {


     int contarCapas (TreeSet<punto> puntosOrdenados){

         System.out.println("asdasdf");
        int numeroDeCapas=0;

        HashSet <punto> puntosUsados = new HashSet<punto>();

        while (!puntosOrdenados.isEmpty()){

            punto p= puntosOrdenados.pollFirst();

            puntosUsados.add(p);

            //chequear contra todos los demas para hallar minArco
            double minArco=99999999;
            punto minPunto = new punto(-2001,-2001);
            double arco=0;
            for (punto siguiente: puntosOrdenados){

                if(siguiente.equals(p)){
                    continue;
                }


                arco=Math.atan2(p.y - siguiente.y, p.x - siguiente.x);
                if (arco< minArco){
                    minArco=arco;
                    minPunto = siguiente;
                }

            }

            if (puntosUsados.contains(minPunto)){

                numeroDeCapas= numeroDeCapas+1;

            }

        }

        return numeroDeCapas;

    }



    public static void main(String[] args) {

        PointComparator pointComparator = new PointComparator();

        System.out.println(Math.atan2(-1.0, 1.0));
        //System.out.println(Math.acos(cont))
        Scanner s = new Scanner(System.in);

        try{
        s = new Scanner(new File("entrada.txt"));
        } catch(IOException e){}
        int N,x,y;

        N = s.nextInt();

        while(N!=0){

            punto cebolla[] = new punto[N];

            TreeSet <punto> puntosOrdenados = new TreeSet <punto>(pointComparator);

            for(int i=0;i<N;i++){
                x=s.nextInt(); y=s.nextInt();
                cebolla[i]=new punto(x,y); //borrar?
                puntosOrdenados.add(new punto(x,y));
            }

           Main m = new Main();
           int cont= m.contarCapas(puntosOrdenados);
           System.out.println(cont);

             if(cont%2==0){
                System.out.println("NO");
             }else{
                System.out.println("SI");
             }
             N = s.nextInt();
        }
    }


    }

That gibbering println inside contarCapas isn't printing. The code isn't entering its call. Why?


That's what I'd expect to see if your source is out of sync with the bytecode that's running. Try a clean build of the code, or you could also use javap to disassemble the bytecode and see if it looks like it matches the source, depending on your situation.

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