java.util.Scanner refuses to take the next (or any) input

Question

Current error message "cannot find symbol: variable nextLine in variable input of type Scanner"

Eventually it is going to do much more than this but I don't even understand why it won't read...so it may take a bit XD

Method so far:

public static void flipCoins(Scanner input) 
{
    ArrayList<String> lines = new ArrayList<>();
    while(input.hasNextLine())
    {
        lines.add(input.nextLine);
        // WHERE THE ERROR OCCURS
    }
    System.out.print(lines.toString());
}

These are the links I have been trying to debug with:

whole Scanner class: https://www.tutorialspoint.com/java/util/java_util_scanner.htm

.next() specifically: https://www.tutorialspoint.com/java/util/scanner_next.htm

EDIT FOR MORE

I also receive this error: "cannot find symbol: variable next in variable input of type Scanner", with the following:

lines.add(input.next);

Answer 1

you are missing parenthesis"()", nextLine() is a function when calling function in java we need parenthesis after a function name to invoke a function. similar to what you did here

while(input.hasNextLine())

this will work

public static void flipCoins(Scanner input) 
{
    ArrayList<String> lines = new ArrayList<>();
    while(input.hasNextLine())
    {
        lines.add(input.nextLine());
    }
    System.out.print(lines.toString());
}