My task is to count the number of words on each line of a text file, separated by space. The text file has 5 lines. I am very new to Java. I have so far this code with the B1TextLoader class and several methods. My output is: however, I want it to print something like How can I achieve this?
Tag: bufferedreader
read a File in hex byteArray and write part of that array to another File – java android
I have a 200kb file and I have to read it in bytes, and then write part of this byteArray (from index 90000 to 165000) to another file. How can I accomplish this. Answer Use a RandomAccessFile in order to seek to the offset to start copying from. For example:
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
“String.substring(int, int) line: not available” causes error
Somehow my if loop using a substring to check a .txt file is causing problems. Without the if loop, everything works fine. But with it, it seems that an empty line in the text file is causing it to crash. It is working until the first empty line in the file, and then I get this error. What could I
Read files from directory using BufferedReader
I wrote a code to read a files from a directory. The directory contain many files. Firstly, I count the number of the files in the directory, then I would like to count number of lines in the files that have as extension: .info and .data My code is the following: I got as error: The error concerns the FileReader,
How do I work with a REST API in Java that returns a zip file?
I am familiar with the basics of making a GET request in Java using the HttpURLConnection class. In a normal situation where the return type would be a JSON, I’d do something like this: However, the current endpoint I’m trying to work with sends back a zip file containing various types of files. The ‘Content-Type’ in that case would be
Why bufferedReader is much efficient than Scanner class in java? [closed]
Have a look in the following question , no matter how much efficiently you write the solution for this , using Scanner class is resulting in the time out . Question : You have given an array , having …
Ignoring blank lines in CSV file in Java
I am trying to iterate through a CSV file in Java. It iterates through the entire file, but will get to the end of the file and try to read the next blank line and throw an error. My code is below. Like I typed, this works fine until it gets to the end of the file. When it gets
How to read multiple integer values from one line in Java using BufferedReader object?
I am using BufferedReader class to read inputs in my Java program. I want to read inputs from a user who can enter multiple integer data in single line with space. I want to read all these data in an integer array. Input format- the user first enters how many numbers he/she want to enter And then multiple integer values
How can I read a file containing text and image data?
I’ve got a file with the following structure: For example: I write the example above like this: This works fine. However, I do not know how to read the file. The problem is that I need to call ImageIO.read() to parse the image, but I can’t call it with a BufferedReader. My draft looks like this: So: How can I