Scanner的使用步骤
1.导入包
import java.util.Scanner;
2.创建Scanner的实例
Scanner sc = new Scanner(System.in);
3.使用他的功能
public class ScannerDemo{
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
System.out.print("请输入一个数字");
int a = sc.nextInt();
System.out.println(a+1);
System.out.print("请输入字符串");
String b = sc.next();
System.out.println(b+1);
}
}