meanshift/src/test/OperateFile.java

package test;

import test.entity.Point;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Scanner;

public class OperateFile {

    public ArrayList<String> readData(String filePath) throws FileNotFoundException {

        System.out.println("1");

        File file = new File(filePath);

        System.out.println(filePath);

        Scanner input = new Scanner(file);

        ArrayList<String> dataArrayList = new ArrayList<>();

        while (input.hasNext()){

            String rowData = input.nextLine();
            System.out.println(rowData);

            dataArrayList.add(rowData);

        }

        input.close();

        return dataArrayList;

    }


    public ArrayList readFileStream(String filePath) throws FileNotFoundException {

        FileInputStream inputStream = new FileInputStream(filePath);

        ArrayList<String> dataArrayList = new ArrayList<>();

        Scanner sc = new Scanner(inputStream, "UTF-8");

        while (sc.hasNextLine()) {

            String line = sc.nextLine();
            dataArrayList.add(line);

        }

        return dataArrayList;
    }

    public void printData(String filePath,ArrayList<String> dataList) throws FileNotFoundException {

        File file = new File(filePath);

        java.io.PrintWriter listOutPut = new java.io.PrintWriter(file);

        for (int i = 0 ; i < dataList.size();i++){

            listOutPut.println(dataList.get(i).toString());

        }

        listOutPut.close();

    }

    public void printPoint(String filePath,ArrayList<Point> dataList) throws FileNotFoundException {

        File file = new File(filePath);

        java.io.PrintWriter listOutPut = new java.io.PrintWriter(file);

        for (int i = 0 ; i < dataList.size();i++){

            Point point = dataList.get(i);


            listOutPut.println(point.getColX() + " " + point.getColY());

        }

        listOutPut.close();

    }




}