import java.util.Scanner;
public class Train2 {
public static void main(String[] args) {
// TODO Auto-generated method stub
System. out. println(" ==== 互动程序====");
Scanner sc = new Scanner(System.in);
System.out.println("请输人您的姓名:");
String str= sc.next();
System.out.println(str+",您好!欢迎学习Java.");
sc.close();
}
}