Printing content of an Array in Java

Question

This generates the array.

public word (String file)
{...
    public int[] getArray()
    {       
       int[] array = {... } ;
       return array;
       }
}

And I need to reference that array in another class

public static void main()
{
    word numarray = new word("doc.txt");
    int [] heightarray =  numarray.getArray();
    System.out.println(heightarray);
}

I'm not getting any errors but I get things like [I@1a6fa30c as a result.

If you want to print it, use heightarray.toString()

J Jiang
– J Jiang

2014-05-07 01:56:29 +00:00
Commented May 7, 2014 at 1:56 — J Jiang
– J Jiang, Commented May 7, 2014 at 1:56

Kakarot · Accepted Answer · 2014-05-07 02:22:05Z

2

What you are getting in the output is the hashcode of the array. In order to print the contents of the array you can you either of the below options :

Option 1 : Print the elements one by one using a loop a below :

for(int val : heightarray)
{
   System.out.print(val + ",");
}

Option 2 : Use Arrays utility class for printing the array

System.out.println(Arrays.toString(heightarray));

edited May 7, 2014 at 2:22

answered May 7, 2014 at 1:54

Kakarot

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ammendonca · Accepted Answer · 2014-05-07 01:58:27Z

2

You can print it using the Arrays.toString() method:

System.out.println(Arrays.toString(heightarray));

answered May 7, 2014 at 1:58

ammendonca

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