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Thread: Problem with returning 2d array

  1. #1
    Junior Member
    Join Date
    Mar 2013
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    Default Problem with returning 2d array

    I got two class a cipher and tester class
    here is cipher:
    import java.util.*;
    import java.lang.*;
    public class Ciph{

    public char[][] getCipherText(){
    char[][] a={{'A','E','B','I','M','Y'},{'N','R','C','A','T', 'S'}};

    return a;

    here is tester:
    public class Test{

    public static void main(String[] args){

    Ciph cph= new Ciph();



    There is no error in compiling but when you run the program, it returns random string not the AEBIMYNRCATS
    I get the error: [[C@7a718e31

    How do I solve this?

  2. #2
    Super Moderator Norm's Avatar
    Join Date
    May 2010
    Eastern Florida
    Thanked 2,421 Times in 2,374 Posts

    Default Re: Problem with returning 2d array

    I get the error: [[C@7a718e31
    That is not an error. That is the String returned by a two dimensional array's toString() method.
    To get a printout of the array's contents, use the Array class's deepToString() method to format the array:
    System.out.println("an ID "+ java.util.Arrays.deepToString(theArrayName));

    Please edit your post and wrap your code with
    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

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