strange error

Code:

  // Fig. 7.14: fig07_14.cpp
  // Passing arrays and individual array elements to functions.
 #include <iostream>
  using std::cout;
  using std::endl;

  #include <iomanip>
 using std::setw;

  void modifyArray( int[]); // appears strange
  void modifyElement( int );

  int main()
  {
     const int arraySize = 5; // size of array a
     int a[ arraySize ] = { 0, 1, 2, 3, 4 }; // initialize array a

     cout << "Effects of passing entire array by reference:"
        << "\n\nThe values of the original array are:\n";

     // output original array elements
     for ( int i = 0; i < arraySize; i++ )
        cout << setw( 3 ) << a[ i ];

     cout << endl;

     // pass array a to modifyArray by reference
     modifyArray( a );
    cout << "The values of the modified array are:\n";

     // output modified array elements
     for ( int j = 0; j < 6; j++ )
        cout << setw( 3 ) << a[ j ];

     cout << "\n\n\nEffects of passing array element by value:"
        << "\n\na[3] before modifyElement: " << a[ 3 ] << endl;

     modifyElement( a[ 3 ] ); // pass array element a[ 3 ] by value
     cout << "a[3] after modifyElement: " << a[ 3 ] << endl;

     return 0; // indicates successful termination
  } // end main

  // in function modifyArray, "b" points to the original array "a" in memory
  void modifyArray( int b[])
  {
     // multiply each array element by 2
     for ( int k = 0; k < 6; k++ )
        b[ k ] *= 2;
  } // end function modifyArray

  // in function modifyElement, "e" is a local copy of
  // array element a[ 3 ] passed from main
  void modifyElement( int e )
  {
     // multiply parameter by 2
     cout << "Value of element in modifyElement: " << ( e *= 2 ) << endl;
  } // end function modifyElement

after compiling this and running the prog

I get something strange

see the code above "cout << "\n\n\nEffects of passing array element by value:"

it should have print 0 2 4 6 8
only but when i run I get one more number beside "8" which is "88013984"

sure mate.. there is only 5 #'s in your array yet you are trying to access 6

your loops are looking for
a[0]
a[1]
a[2]
a[3]
a[4]
a[5] <--- doesn't exist


for ( int j = 0; j < 6; j++ )and
for ( int k = 0; k < 6; k++ )

change to

Code:

for ( int j = 0; j < 5; j++ )
for ( int k = 0; k < 5; k++ )

and it'll work

thanks i should have concentrated lil more