PhysicalExaminate.java

import java.util.Scanner;

public class PhysicalExaminate {

	// 시력분포 상수(0.0에서 0.1단위로 21개
	static final int VMAX = 21;
	
	//멤버변수
	static class PhyscData {
		String name;
		int height;
		double vision;
	//생성자
	PhyscData(String name, int height, double vision){
		this.name = name;
		this.height = height;
		this.vision = vision;
	}
}
	//키 평균값 메서드
	static double aveHeight(PhyscData[] dat) {
		double sum = 0;
		
		for(int i=0; i< dat.length; i++) {
			sum += dat[i].height;
		}
		return sum/dat.length;
	}
	//시력 분포
	static void distVision(PhyscData[] dat,int[] dist) {
		int i = 0;
		dist[i]=0;
		for(i=0; i<dat.length; i++) {
			if(dat[i].vision >=0.0 && dat[i].vision <= VMAX/10.0) {
				dist[(int)(dat[i].vision*10)]++;
			}
		}
		
	}
	
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		
		//신체 데이터 x
		PhyscData[] x = {
				new PhyscData("박현규", 162, 0.3),
				new PhyscData("함진아", 173, 0.7),
				new PhyscData("최윤미", 175, 2.0),
				new PhyscData("홍연의", 171, 1.5),
				new PhyscData("이수진", 168, 0.4),
				new PhyscData("김영준", 174, 1.2),
				new PhyscData("박영규", 169, 0.8)
		};
		int[] vdist = new int[VMAX]; //시력분포
		
		System.out.println("===신체 검사 리스트===");
		System.out.println("이름       키   시력");
		System.out.println("-------------------");
		
		for(int i=0; i<x.length; i++) {
			System.out.printf("%-8s%3d%5.1f\n",
					x[i].name,x[i].height, x[i].vision);
		}
		
		System.out.printf("\n평균키: %5.1fcm\n", aveHeight(x));
		
		distVision(x, vdist);
		
		System.out.println("\n시력 분포");
		for(int i=0; i<VMAX; i++) {
//			System.out.printf("%3.1f~: %2d명\n", i/10.0, vdist[i] );
			// 사람수( :명)
			
			// "*" 그래프로
			System.out.printf("%3.1f~:", i/10.0);
			for(int j=0; j<vdist[i];j++)
				System.out.print("*");
				System.out.println();
		}
	}

}