Main.java

mport java.util.Scanner;

class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);

System.out.print("何人分の情報を入力しますか：");
int n = scanner.nextInt();

int maxAge = 0;
int totalAge = 0;
for(int i = 0; i < n; i++){
  System.out.println(i + 1 + "人目");

  System.out.print("名前：");
  String firstName = scanner.next();

  System.out.print("名字：");
  String lastName = scanner.next();

  System.out.print("年齢：");
  int age =scanner.nextInt();

  if(age >maxAge){
    maxAge = age;
  }
  totalAge += age;

  System.out.print("身長(m)：");
  double height = scanner.nextDouble();

  System.out.print("体重(kg)：");
  double weight = scanner.nextDouble();

  Person.printData(firstName,lastName,age,height,weight);
  }
  System.out.println("最高年齢は"+maxAge+"歳です");
  System.out.println("平均年齢は"+totalAge/n+"歳です");
}

}