The API reference for BufferedWriter and PrintWriter detail the differences. The main reason to use the PrintWriter is to get access to the printXXX methods like println(). You can essentially use a PrintWriter to write to a file just like you would use System.out to write to the console. A BufferedWriter is an efficient way … Read more
Below Function converts the Excel sheet (XLSX format) data to JSON. you can add promise to the function. Below post has the code for XLS format Excel to JSON javascript code?
You should pass the file contents (i.e. a string) to json.loads(), not the file object itself. Try this: There’s also the json.load() function which accepts a file object and does the f.read() part for you under the hood.
The problem is most likely that your application is using a relative pathname. As @BalusC says, relative pathnames can be problematic. But IMO, he goes way too far when he says “[y]ou should never use relative paths in java.io stuff”. When an application opens a file using (for example) the FileInputStream(File) constructor, relative pathnames are … Read more