关于Scanner的具体应用

package scanner;

import java.util.Scanner;

public class Demo4 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);


        int i = 0;
        float f = 0.0f;
        System.out.println("请输入整数:");
        //如果....那么
        if(scanner.hasNextInt()){
            i=scanner.nextInt();
            System.out.println("整数数据为："+i);
        }else {
            System.out.println("输入的不是整数数据");
        }
        System.out.println("请输入小数：");
        if(scanner.hasNextFloat()){
            f=scanner.nextFloat();
            System.out.println("小数数据为："+f);

        }else {
            System.out.println("输入的不是小数数据！");
        }



    }
}

输入0.6