Java scanner returning filename instead of file content

Question

I am trying to read the contents of a file:

Scanner fileReader = new Scanner("myFile.txt");
int counter = 0;
while(fileReader.hasNextLine()) {
    
    if(counter == 0) {
        System.out.println("IT IS READING " + fileReader.nextLine());
    }
}

myFile.txt content:

HELLO WORLD

Instead of printing hello world:

I am getting: IT IS READING myFile.txt

TheCoolDrop · Accepted Answer · 2020-11-01 17:07:01Z

3

The problem is that you are initializing a scanner with java.util.Scanner(String) constructor, and this constructor simply creates a Scanner which reads out the String you passed in.

What you actually need is in order to read out a file is:

Scanner fileReader = new Scanner(new File("myFile.txt"));
int counter = 0;
while(fileReader.hasNextLine()) {

    if(counter == 0) {
        System.out.println("IT IS READING " + fileReader.nextLine());
    }
}

answered Nov 1, 2020 at 17:07

TheCoolDrop

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