import java.io.DataInputStream;

import java.io.IOException;

public class Test {

    public static void main(String[] args) {

        System.out.println("请输入数字：");

        DataInputStream dis = new DataInputStream(System.in);

        int x = ;

        try {

            x = dis.readInt();

            System.out.println(x);

        } catch (IOException e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

    }

}