数据输入接收：

package com.fu;import com.sun.org.apache.xpath.internal.SourceTree;import java.util.Scanner;/** * @auther 付强 * @date 2020/2/12 - 11:27 */public class xindejava {    public static void main(String[] args) {        Scanner scanner=new Scanner(System.in);        System.out.println("请输入一个数据");        if(scanner.hasNext()){            System.out.println("输出"+scanner.next());        }        scanner.close();    }}