导包
格式 import java.util.Scanner
位置
在 class上面
创建键盘录入对象
Scanner sc = new Scanner();
通过对象来获取数据
int x = sc.nextInt();
1 import java.until.Scanner; 2 3 public class HelloWorld { 4 public static void main(String[] args) { 5 Scanner sc = new Scanner(System.in); 6 System.out.println("请输入整数 "); 7 int i = sc.nextInt(); 8 System.out.println(i); 9 10 //11 12 Scanner sr = new Scanner(System.in);13 int y = sr.nextInt();14 System.out.println("y=",y);15 int z = sr.nextInt();16 System.out.println("z=",z);17 18 }19 }