java - How to determine when end of file has been reached?

Question

I am trying to read text from a text file. I need help figuring out when the end of file has occured. How can I determine this in Java?

FileInputStream istream = new FileInputStream("""+filename+""");      
Scanner input = new Scanner(istream);
while(EOF != true)
{
 ....
}

Thanks!

Answer 1

You can check using hasNextLine():

Scanner input = new Scanner(new File("""+filename+"""));
while(input.hasNextLine())
{
   String data = input.nextLine();
}