Array Index Out of Bounds Exception !

PoRco · 10-20-2008, 02:17 AM

I re coded it with different names for my array and it worked, but when I cross check the two, I can't spot the error..

Code:

java.lang.ArrayIndexOutOfBoundsException: 25
	at A3Q2.main(A3Q2.java:67)[/I]

Can you guys please help me? I tried everything.

The program is supposed to code an input of a word into an array

Code:

class A3Q2 
{
    public static void main (String[] args)
    {

        char original[];  // Original Alphabet
       
       original = new char[] {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','x','y','z'};
        
        char  code[]; // Code corresponding to Alphabet
        code = new char [] {'t','m','e','s','f','k','j','a','x','n','o','v','u','l','c','h','z','g','y','b','w','p','d','r','i','q'};
        int n = 0;
        char [] wa  = new char[n];
        int C;
        int I;
        int C2;
        int I2;
        int p;
        
       // READ IN GIVENS  - use the class ITI1120

     System.out.println(" Please input a word");
                        
        wa = ITI1120.readCharLine();
          

n = wa.length;

        char [] wa2 = new char[n];
        char [] wa3 = new char[n];
        
     
        
        // BODY

    
  C = 0;
  C2 = 0;
  
  
        {    
        while (C < n)
        {
          I = 0;
          while ( I <= 25)
          {
            if ( wa[C] == original[I])
            {
              wa2[C] = code[I];
            
            }
            
            I = I + 1;
            
          }
          C =  C + 1;
        }
        }
         
       p =0;
    while (p < n)
    { 
      System.out.println ( wa2[p] );
      p = p+1;
      
    }
    }
}

Fou-Lu · 10-20-2008, 07:30 AM

I'm too tired to debug it, but it looks like its a simple index in using 'i'. You don't appear to have an 'i', though you do have an 'I'.
Looks like that's here:

Code:

if ( wa[C] == original[i])
{
    wa2[C] = code[i];
            
}

Aradon · 10-20-2008, 02:04 PM

Yeah he's right on your code. I'm not even sure how that compiled in order to get the ArrayIndexOutOfBounds Exception.

Undoubtedly a Silly IDE is doing the work for you!