scanner进阶使用

package Base;

import java.util.Scanner;//导入了scanner的包

public class Demon04 {

public static void main(String[] args) {
	// TODO Auto-generated method stub
	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("整数数据："+i);
}else {
	System.out.println("你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："+f);
}else {
	System.out.println("你输入的不是小数数据");
}
}

}