javaScanner运用

import java.util.*;

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

int i = 0;
float f = 0.0f;

System.out.println(“请输入整数”);
if(scanner.hasNextInt()){
i = scanner.nextInt();
System.out.println(“输入的”+i);
}else{
System.out.println(“你输入的不是数字”);
}

System.out.println(“请输入小数”);
if(scanner.hasNextFloat()){
f = scanner.nextFloat();
System.out.println(“输入的小数”+f);
}else{
System.out.println(“你输入的不是小数”);
}

scanner.close();
}
}