성적 분석

각 점수의 최대값과 최소값 출력

DataEx.java

import java.util.Arrays;

public class DataEx {

public static void main(String[] args) {

// TODO Auto-generated method stub

Data data = new Data("분석 데이터 url");

data.ReadData();

}

}

Data.java

import java.io.BufferedReader;

import java.io.FileNotFoundException;

import java.io.FileReader;

import java.io.IOException;

import java.util.ArrayList;

import java.util.List;

public class Data {

String url = "";

int i = 0;

int[][] scores = new int[15][];

Data(String url) {

this.url = url;

}

void ReadData() {

try {

FileReader fr = new FileReader(url);

BufferedReader br = new BufferedReader(fr);

String line = "";

br.readLine();

int maxScore[] = new int[3];

int minScore[] = new int[3];

while ((line = br.readLine()) != null) {

String[] sArr = line.split(","); //index 날리기 (국어, 수학, 영어...)

scores[i] = new int[sArr.length];

for (int j = 0; j < sArr.length; j++) { //배열 scores에 데이터 저장

scores[i][j] = Integer.parseInt(line.split(",")[j]);

System.out.print(scores[i][j] + "\t");

if(i==0 && j>0) { //maxScore[0]와 minScore[0]에 초기값 지정

maxScore[j-1] = Integer.parseInt(line.split(",")[j]);

minScore[j-1] = Integer.parseInt(line.split(",")[j]);

}

if(i>0 && j>0) { //maxScore[0]와 minScore[0]가 아닌 경우, 최대값 최소값 알고리즘 실행

if(maxScore[j-1]<scores[i][j])

maxScore[j-1] = scores[i][j];

if(minScore[j-1] > scores[i][j])

minScore[j-1] = scores[i][j];

}

}

System.out.println();

i++;

}

//max값 출력

System.out.println("===================================================");

System.out.print("MAX:\t");

for(int i=0; i<maxScore.length; i++) {

System.out.print(maxScore[i]+"\t");

}

//min값 출력

System.out.println();

System.out.print("MIN:\t");

for(int i=0; i<minScore.length; i++) {

System.out.print(minScore[i]+"\t");

}

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

System.out.println("FileNotFound");

} catch (IOException e) {

System.out.println("IOException");

}

}

}

분석 데이터

kemdata.csv