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Raza

Wed Mar 11, 2009 7:16 pm


Array Question

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[code]//Complete the following program so that it reverses the order of the values in data, then prints it out.

//In the first version of the program there is only one array and its values are reversed with some fairly tricky programming.

import java.io.* ;

class ReverserVersion1
{

  public static void main ( String[] args ) 
  {
    int[] data = {1,2,3,4,5,6,7,8,9,10,11,12,13,14};
    
    // reverse the data
    for ( int j=0; j < be careful here; j++)
    {

    }
      
    // write out the new data
    for ( int j=0; j < data.length; j++)
    {

    }

  }
}      [/code]


This question has given me something of a headache. You're supposed to solve it without creating another array. The closest I've gotten to solving is data[j]=data[13-j]; which gives me (for obvious reasons) a {14,13,12,11,10,9,8,8,9,10,11,12,13,14} array for an answer. I can't find a way around it, unless I were to find the sum of the array and then subtract each number.. or some other ludicrously time-consuming method, but I'm sure there's a quicker solution.

Help?


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Tony

Wed Mar 11, 2009 7:26 pm


RE:Array Question

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but you could create another int variable, no?


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Raza

Wed Mar 11, 2009 7:37 pm


RE:Array Question

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Yes, please elaborate.


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Tony

Wed Mar 11, 2009 8:17 pm


RE:Array Question

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would int[] + int give you enough space to reverse the order of values in the int[] ?