###### 键盘输入(Scanner) *** 1.导包:import java.util.Scanner 2.Scanner的实例化 ```java Scanner scan = new Scanner(System.in); ``` 3.调用Scanner类的相关方法,来获取指定类型的变量 ````java int y = scan.nextInt(); ````

###### 键盘输入(Scanner) *** 1.导包:import java.util.Scanner 2.Scanner的实例化 ```java Scanner scan = new Scanner(System.in); ``` 3.调用Scanner类的相关方法,来获取指定类型的变量 ````java int y = scan.nextInt(); ````