CODEWITHSUNDEEP
javajava.util.scanner
snowman
snowman

Reputation: 3

How to pass the output of scan.nextLine() into another scanner

I am working on a project where I need to scan one line at a time and pass that into another method that does more scanning. currently I have

public static void inputStats(Scanner scan)throws FileNotFoundException {
    while (scan.hasNextLine()) {
    String text = scan.nextLine();
    printDuplicates(text);// my other method
    }
    }

currently java tells me :String cannot be converted to Scanner my other method simply gets a scanner passed in, the start of it is: printDuplicates(Scanner scan){ Im not sure how to pass the correct thing, or force it.

alternate solution for me would be having scanner.next stop at the end of a line.

I have tried passing a scanner in by creating a new scanner and passing that in instead of a string. I have tried forcing the inputs with (). I have tried every way of not using scanner twice that I know of.

Upvotes: 0

Views: 51

Answers (2)

Reilas
Reilas

Reputation: 6266

"... currently java tells me :String cannot be converted to Scanner ..."

This is because the printDuplicates parameter is a Scanner object.

"... I have tried passing a scanner in by creating a new scanner and passing that in instead of a string ..."

This is correct, try it again.

"... the start of it is: printDuplicates(Scanner scan){ Im not sure how to pass the correct thing, or force it. ..."

Either will work, just adjust the printDuplicates code.

void printDuplicates(Scanner scan) {
    
    scan.close();
}

void printDuplicates(String text) {
    try (Scanner s = new Scanner(text)) {
        
    }
}

Upvotes: 0

Sweeper
Sweeper

Reputation: 273540

You can create a Scanner that scans a String by just passing the string to its constructor that takes a string.

printDuplicates(new Scanner(text));

Also consider making printDuplicates directly take a String, and create the scanner inside printDuplicates, if it needs to scan tokens.

void printDuplicates(String text) {
    Scanner scan = new Scanner(text);
    // ...
}

Upvotes: 1

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