I am able to access the Firestore image url on my browser window. I want to convert this image url into BufferedImage after reading I have to find sub-image to get barcode value presented on my image. Here is the code, I have connected with my bucket using Firestore and selecting few images from bucket based …
Tag: file-io
How do I create an Image from a byte array?
I want to be able to take the data of an image as an array, modify it, and then use that array to create a modified image. Here is what I attempted: Here is how it works. The robot takes a screen capture of the screen, which is then stored into a BufferedImage. The data of the image is stored
BufferedReader saving sentence, String array, then 2D int array
I have a .txt file that contains text that I would like to save part of it in a String, part of it in a String array, and then the last part in a 2D int array, and am faced with two issues: How to read and save both of the arrays when their size is not known ahead of
Java: reading objects from file into different derived classes
I have class Employee, and two derived classes Hourly and Salary. Instantiations of those derived classes are placed in the same Array List called employeeList. When I read these objects from file using ois.readObject() how can I ensure the data ends up in the appropriate derived class? Thank you! Answer Note…
Java .split method returning empty array
I am trying to count all the words in each sentence in an array of multiple sentences automatically from a file in eclipse. When I’m splitting the paragraph into sentences the java .split method is returning an empty array Here is the code that is causing me trouble here is my sentence class And finally…
How to get file name having particular content in it using java?
Here I am trying to read a folder containing .sql files and I am getting those files in an array, now my requirement is to read every file and find particular word like as join if join is present in the file return filename or else discard , someone can pls help me with this .. Answer You can search
Writing multiple lines using PrintWriter in Java
I am sorry if this question is already answered on the internet but by looking at the ‘similar questions’ I couldn’t find an answer for my problem. So basically I’m trying to understand why using PrintWriter to write lines of text into a file apparently skips the first line every 2 lin…
List all Files from a Directory that match a File Mask (a.k.a Pattern or Glob)
I want to list all files in a directory and subdirectories within that directory that match a file mask. For example “M:SOURCE*.doc” while SOURCE may look like this: Should return File1.doc and File2.doc. Initially, I use a DirectoryStream, because that already makes some checks for the mask/glob …
Java : How to copy folder with contents from resource and copy to temp directory?
Project structure: Using maven-assembly plugin, I am including the resources in the jar file. As PMD folder will be used by the applcaition, I would like to create a copy of the PMD folder in the temp directory, so that I can start reading the bat files and other files from that temp directory. ISSUE When the…
Several Errors being Logged for File I/O code
Here is my code from learning the File i/o… Whenever I try to open the ABC1.txt file from the workspace folder (In C:), it shows the size of 12.00 MB and whenever I refresh the folder the size also gets increased each time . And another thing I want to mention is, I m not able to see the File