Growing an Array

• If the array is full and you need more space, you can grow the array:
  
  1. Create a new, larger array.

     double[] newData = new double[2 * data.length];

  2. Copy all elements into the new array

     System.arraycopy(data, 0, newData, 0, data.length);

  3. Store the reference to the new array in the array variable

     data = newData;