Unexpected value printed when trying to print sorted array

Question

Here is my code. Can someone help me with this error?

public class ExcahngeSort {

    public double[] ExSort(double[] gangnam,int size)
    { double temp;

        for(int outrloop=1;outrloop<size;outrloop++)
        {

            for (int innrloop=0;innrloop<size-outrloop;innrloop++)
            {

                if(gangnam[innrloop]>gangnam[innrloop+1])
                {
                     temp=gangnam[innrloop];
                    gangnam[innrloop]=gangnam[innrloop+1];
                    gangnam[innrloop+1]=temp;
                }
            }
        }   
        return gangnam;
    }
}

I get an unexpected value [D@360be0printed. I don't know what this means.

Here is my main method:

public class BsortSimulate {
    public static void main (String args []){

        //BSort bs = new BSort();
        ExcahngeSort es = new ExcahngeSort();
        double gangnam [] = {12,24};

        System.out.println(es.ExSort(gangnam, 2));

        }
}

Tomasz Nurkiewicz · Answer 1 · 2012-10-17T18:10:51.023

2

You are printing the array incorrectly, use Arrays.toString() utility method:

System.out.println(Arrays.toString(es.ExSort(gangnam, 2)));

Arrays in Java do not override toString(), as opposed to most List implementations.

edited Oct 17 '12 at 18:10

answered Oct 17 '12 at 18:05

Tomasz Nurkiewicz

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but when i make the change as u said i dont get any output .i import the import java.util.Arrays; package also and im a newbie please help me with this. i think it must be an error in my code not in the array – ChawBawwa Oct 17 '12 at 18:10

score 1 · Answer 2 · answered Oct 17 '12 at 18:05

1

System.out.println(Arrays.toString(es.ExSort(gangnam, 2)));

answered Oct 17 '12 at 18:05

banjara

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@ChawBawwa What is it printing? – Rohit Jain Oct 17 '12 at 18:16
i have tried it and its working – banjara Oct 17 '12 at 18:16

score 0 · Answer 3 · answered Oct 17 '12 at 18:05

0

It is not an error. You are trying to print array object. You can't override toString() for arrays in Java.

Your print statement should be like below:

Example:

System.out.println(Arrays.toString(es.ExSort(gangnam, 2)));

answered Oct 17 '12 at 18:05

kosa

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Unexpected value printed when trying to print sorted array

3 Answers3