Perform a search from a certain date

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Perform a search from a certain date

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#1 by (0 votes)

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I'm reading a csv file that generates data when a particular page was accessed. However I am not able to implement a method that allows me to perform the search from a date that I wish. Follow the code

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class httpcompleto {
    public static void main(String[] args) throws IOException {

        BufferedReader httpcompleto = new BufferedReader(new FileReader("http-completo.csv"));
        String line = "";
        String date;
        while((line = httpcompleto.readLine()) != null ){
            String[] row = line.split(",");
            System.out.println(row[0] + " - " + row[1] + " - " + row[2] + " - " + row[3] + " - " + row[4]);
        }
    }
}

java date

asked by anonymous 31.05.2017 / 01:49

1 answer

Change path of DB Compact Sql in Setting.Designer.cs C # SqlDep_OnChange with SignalR does not work

score 0 · Answer 1

For ease of processing, create a class Linha to represent the line.

For each line read from the file, instantiate a Linha object with the read data.

Store the instantiated object in a list.

Scroll through the list, looking for items that have the desired date.

Notes:

To make it easier to compare the date, make it a Calendar . You can do this:

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
Calendar cal = Calendar.getInstance();
cal.setTime(sdf.parse("02/02/2010 09:43:44"));

An example of class Linha :

class Linha {

    public static final SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");

    private String campo0;
    private Calendar campo1;
    private String campo2;
    private String campo3;
    private String campo4;

    public Linha(String campo0, String campo1, String campo2, String campo3, String campo4) throws Exception {
        this.campo0 = campo0;

        Calendar cal = Calendar.getInstance();
        cal.setTime(sdf.parse(campo1));
        this.campo1 = cal;

        this.campo2 = campo2;
        this.campo3 = campo3;
        this.campo4 = campo4;
    }

    public String getCampo0 () { return campo0; };
    public Calendar getCampo1 () { return campo1; };
    public String getCampo2 () { return campo2; };
    public String getCampo3 () { return campo3; };
    public String getCampo4 () { return campo4; };

}