将Scanner类与System.console（）一起使用.readLine（）？

Question

我想知道如果将Scanner类与System.console.readLine（）方法结合使用会导致更快的输入读取。举个例子，我使用上面的两个程序创建了以下程序，只有Scanner类和System.console.readLine（）方法：

扫描仪＆amp; System.console.readLine（）：

import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.console().readLine());
        while (!in.hasNextInt())
            in = new Scanner(System.console().readLine());
        System.out.println("This is an int: " + in.nextInt());
        System.out.println("This is a single char: " + System.console().readLine());
        System.out.println("This is a whole String input: " + System.console().readLine());
        while (!in.hasNextInt())
            in = new Scanner(System.console().readLine());
        System.out.println("This is again an int: " + in.nextInt());
    }
}

扫描仪：

import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (!in.hasNextInt())
            in.next();
        System.out.println("This is an int: " + in.nextInt());
        System.out.println("This is a single char: " + in.nextLine().charAt(0));
        System.out.println("This is a whole String input: " + in.nextLine()); // copy-pasting the "\n" char will break input.
        while (!in.hasNextInt())
            in.next();
        System.out.println("This is again an int: " + in.nextInt());
    }
}

控制台：

public class Test {
    public static void main(String[] args) {
        int input;
        while (true) {
            try {
                input = Integer.parseInt(System.console().readLine());
                break;
            } catch (IllegalNumberFormat e) {}
        }
        System.out.println("This is an int: " + input);
        System.out.println("This is a single char: " + System.console().readLine().charAt(0));
        System.out.println("This is a whole String input: " + System.console().readLine());
        while (true) {
            try {
                input = Integer.parseInt(System.console().readLine());
                break;
            } catch (IllegalNumberFormat e) {}
        }
        System.out.println("This is again an int: " + input);
    }
}

对于每种类型的大量数据，上述哪一项最快？