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POI am getting a Array Index out of bounds yet I can't find the what is causing it?
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  1. POI am getting a Array Index out of bounds yet I can't find the what is causing it?
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    copied!<p>In this class I am just working with a binary file but every time I compile I get an array index out of bounds all I needed to do was enhance this code so instead of it reading and writing from a text file it does it using binary, my array list seems to be fine to me? any help would be appreciated</p> <pre><code>import java.util.*; import java.io.*; import java.nio.file.*; public final class ProductBinaryFile implements ProductDAO { private ArrayList&lt;Product&gt; products = null; private Path productsPath = null; private File productsFile = null; private final String FIELD_SEP = "\t"; public ProductBinaryFile() { productsPath = Paths.get("products.bin"); productsFile = productsPath.toFile(); **products = this.getProducts();** } public ArrayList&lt;Product&gt; getProducts() { // if the products file has already been read, don't read it again if (products != null) return products; products = new ArrayList&lt;&gt;(); if (Files.exists(productsPath)) // prevent the FileNotFoundException { try (DataInputStream in = new DataInputStream( new BufferedInputStream( new FileInputStream(productsFile)))) { // read all products stored in the file // into the array list String line = in.readUTF(); while(line != null) { String[] columns = line.split(FIELD_SEP); String code = columns[0]; **String description = columns[1];** String price = columns[2]; Product p = new Product( code, description, Double.parseDouble(price)); products.add(p); line = in.readUTF(); } } catch(IOException e) { System.out.println(e); return null; } } return products; } public Product getProduct(String code) { for (Product p : products) { if (p.getCode().equals(code)) return p; } return null; } public boolean addProduct(Product p) { products.add(p); return this.saveProducts(); } public boolean deleteProduct(Product p) { products.remove(p); return this.saveProducts(); } public boolean updateProduct(Product newProduct) { // get the old product and remove it Product oldProduct = this.getProduct(newProduct.getCode()); int i = products.indexOf(oldProduct); products.remove(i); // add the updated product products.add(i, newProduct); return this.saveProducts(); } private boolean saveProducts() { try (DataOutputStream out = new DataOutputStream( new BufferedOutputStream( new FileOutputStream(productsFile)))) { // write all products in the array list // to the file for (Product p : products) { out.writeUTF(p.getCode() + FIELD_SEP); out.writeUTF(p.getDescription() + FIELD_SEP); out.writeDouble(p.getPrice()); } } catch(IOException e) { System.out.println(e); return false; } return true; } } </code></pre> <p>my text file am trying to read from: <img src="https://i.stack.imgur.com/GJpd8.png" alt="enter image description here"></p>
 

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