import java.util.Scanner;public class Visitor { String name; //姓名 int age; //年龄 //显示信息方法 public void show(){ Scanner input = new Scanner(System.in); while(!"n".equals(name)){ if(age>=18 && age<=60){ //判断年龄 System.out.println(name+"年龄为"+age+",价格为20元" ); }else{ System.out.println(name+"的年龄为:"+age+",免费"); } } } } class Youren { public static void main(String[] args){ Scanner input = new Scanner(System.in); Visitor v = new Visitor(); System.out.print("请输入姓名:"); v.name = input.next(); System.out.print("请输入年龄:"); v.age = input.nextInt(); v.show(); } } 正确的写法
一个java文件中不能出现两个public 类名的
import java.util.Scanner; class Visitor { String name; //姓名 int age; //年龄 //显示信息方法 public void show(){ Scanner input = new Scanner(System.in); while(!"n".equals(name)){ if(age>=18 && age<=60){ //判断年龄 System.out.println(name+"年龄为"+age+",价格为20元" ); }else{ System.out.println(name+"的年龄为:"+age+",免费"); } } } }
public class youren { public static void main(String[] args){ Scanner input = new Scanner(System.in); Visitor v = new Visitor(); System.out.print("请输入姓名:"); v.name = input.next(); System.out.print("请输入年龄:"); v.age = input.nextInt(); v.show(); } }
String name; //姓名
int age; //年龄
//显示信息方法
public void show(){
Scanner input = new Scanner(System.in);
while(!"n".equals(name)){
if(age>=18 && age<=60){ //判断年龄
System.out.println(name+"年龄为"+age+",价格为20元" );
}else{
System.out.println(name+"的年龄为:"+age+",免费");
}
}
}
}
class Youren {
public static void main(String[] args){
Scanner input = new Scanner(System.in);
Visitor v = new Visitor();
System.out.print("请输入姓名:");
v.name = input.next();
System.out.print("请输入年龄:");
v.age = input.nextInt();
v.show();
}
}
正确的写法
class Visitor {
String name; //姓名
int age; //年龄
//显示信息方法
public void show(){
Scanner input = new Scanner(System.in);
while(!"n".equals(name)){
if(age>=18 && age<=60){ //判断年龄
System.out.println(name+"年龄为"+age+",价格为20元" );
}else{
System.out.println(name+"的年龄为:"+age+",免费");
}
}
}
}
public class youren {
public static void main(String[] args){
Scanner input = new Scanner(System.in);
Visitor v = new Visitor();
System.out.print("请输入姓名:");
v.name = input.next();
System.out.print("请输入年龄:");
v.age = input.nextInt();
v.show();
}
}