writing to internal storage code challenge help

Question

I am not sure what it means please help.

FileUtilities.java

import java.io.InputStream;
import java.io.FileNotFoundException;
import java.io.IOException;

public class FileUtilities {

  public static boolean copyResult;

  public static void saveAssetImage(Context context, String assetName) {
    File fileToWrite = new File(context.getFilesDir(), assetName);
    AssetManager assetManager = context.getAssets();

    try {
      InputStream in = assetManager.open(assetName);
      FileOutputStream out = new FileOutputStream(fileToWrite);
      copyResult = copyFile(in, out);
    } catch(FileNotFoundException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }

  private static boolean copyFile(InputStream in, FileOutputStream out) {
    // Copy magic intentionally omitted
    return true;
  }
}

Answer 1 · 2014-12-06T06:40:35Z

December 6, 2014 6:40am

The method that you need to use to check the File is exists() which will return a boolean that indicates whether the file is found. For this code challenge you only want to write to the file if the file does not exist so adding the "!" operator before exists() allows you to test this. I had trouble understanding what to wrap the if statement around but the following ended up working for me.

if (!fileToWrite.exists()) {
      try {
        InputStream in = assetManager.open(assetName);
        FileOutputStream out = new FileOutputStream(fileToWrite);
        copyResult = copyFile(in, out);
      } catch(FileNotFoundException e) {
        e.printStackTrace();
      } catch (IOException e) {
        e.printStackTrace();
      }
    }

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Dalton Coble

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writing to internal storage code challenge help

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Jack Middlebrook

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