import java.util.Scanner;

class Person {
 int age;
 public String name;
 protected int cm;
 private int kg;
 
 void Setkg(int k){
  kg = k;
 }
 
 int Getkg(){
  return kg;
 }
}
public class Student extends Person {
 static Scanner sc;
 
 void printKG(int c, int k) {
  int weight =(int)((c-100)*0.9);
  if(weight < 60) {
   System.out.println("저체중");
  }
  else if(weight>=60 && weight <=80) {
   System.out.println("정상체중");
  }
  else {
   System.out.println("과체중");
  }
  
 }
 public static void main(String[] args) {
  Student s = new Student();
  sc = new Scanner(System.in);
  
  System.out.println("나이 입력 : ");
  s.age = sc.nextInt();
  System.out.println("이름 입력 : ");
  s.name = sc.next();
  System.out.println("키 입력 : ");
  s.cm = sc.nextInt();
  System.out.println("몸무게 입력 : ");
  s.Setkg(sc.nextInt());
  
  s.printKG(s.cm, s.Getkg()); // 키와 몸무게를 매개변수로 전달
 }

 

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