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Using Scanner to take input from Console in Java

This small program to show how to take input from console (can be single or multiple lines)

public static void main(String[] args) throws Exception {
    Scanner console = new Scanner(System.in);
    Scanner lineTokenizer;

    int lineCount = 0;

    // this is to handle all 'lines'
    while (console.hasNextLine()) {
        String lineContent = console.nextLine();
        System.out.println(String.format("Line %d is %s", ++lineCount, lineContent));

        if (lineContent == null || lineContent.isEmpty()) {
            // this is to exit the program if there is no input anymore
            break;
        }
        lineTokenizer = new Scanner(lineContent);

        int itemCount = 0;

        // this is to handle a 'line'
        while (lineTokenizer.hasNext()) {
            if (lineTokenizer.hasNext()) {
                long number = lineTokenizer.nextLong(); // consume the valid token

                System.out.println(String.format("Line %d - Number #%d is %d", lineCount, ++itemCount, number));
            }
        }
        lineTokenizer.close(); // discard this line
    }

    console.close(); // discard lines.
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