Java Scanner System.in

Scanner

Scanner scanner = new Scanner(System.in);
String str = scanner.nextLine();
System.out.println(str);

// Also
System.out.println(new Scanner(System.in).nextLine());

// Or
public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextLine()){
            System.out.println(scanner.nextLine());
        }
    }

BufferedReader

BufferedReader strin = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Input your words:");
String str = strin.readLine();

Java Scanner System.in

原文：https://www.cnblogs.com/nedrain/p/13196393.html