JAVA题：定义People及其对象

 定义一个类People,成员变量有姓名,出生日期,性别,身高，体重等,成员方法有计算年龄,并创建该类的对象.

import java.util.Scanner;

public class People 
    private int age; 
    private double weight; 
    private Date birthday; 

    public People (int n) 
    this.age = new int[n]; 
    this.weight = new double[n]; 
    this.birthday = new Date[n]; 

    Scanner in = new Scanner(System.in); 
       { 
       age[n] = in.nextInt(); 
       weight [n] = in.nextDouble(); 
       birthday[n] = new Date(in.nextInt(),in.nextInt(),in.nextInt());