personal_management

cacl_time.java

/*
    author: @grumpylion
    description: does the calculations with the punchcard variable as input
*/

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;

// for time calculations
public class calc_time {
    
    // how many times did the employee punch in late
    public byte late(byte [][] punchcard) {

        byte late = 0; // late counter

        for (byte i = 0; i < (punchcard.length); i++) {
            if (punchcard[i][0] > 6) { // punch in later than 6
                late++;
            }
            if (punchcard[i][0] == 6) {
                if (punchcard[i][1] != 0 || punchcard[i][1] != 00) { // if not punch in o'clock
                    late++;
                }
            }
        }
        
        return late;
    }

    // how many times did the employee punch out early
    public byte early(byte [][] punchcard) {

        byte early = 0; // early counter

        for (byte i = 0; i < (punchcard.length); i++) {
            if (punchcard[i][2] < 14) { // punch out before 14
                if (punchcard[i][3] != 0 || punchcard[i][3] != 00) { // if not punch out o'clock
                    early++;
                }
            }
        }

        return early;
    }

    // total minutes in the punch card
    public int minutes(byte [][] punchcard) {

        int min = 0, // total minutes
            dmin = 0, // residual minutes
            hmin; // minutes in an hour
        byte dhours = 0; // daily hours

        for (byte i = 0; i < (punchcard.length); i++) {
            dhours = (byte)(punchcard[i][2] - punchcard[i][0]); // punch out hour - punch in hour = total hours in given day
            hmin = dhours * 60; // total hours * 60 = hours to minutes

            dmin = punchcard[i][3];

            min = min + hmin; // previous minutes + today's minutes = total minutes
            min = min + dmin; // previous minutes + residual minutes = total minutes
        }

        return min;
    }
}

main.java

/*  
 *  personalmanagement (main.java)
 *
 *  @grumpylion
 *
 *  Programa de control de personal (suponemos que el horario es de lunes a viernes e intensivo, de 6:00 a 14:00).
 *  Hay que calcular:
 *  1.- Cuantos dias ha llegado tarde.
 *  2.- Cuantos dias se ha ido antes.
 *  3.- Cuantos minutos ha trabajado este mes.
 *
 */

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;

public class main {

    private static BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));

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

        String input;
        byte late_days = 0, // punch in late
             early_days = 0; // punch out early
        int t_min = 0; // minutes

        boolean running = true, // keep on running the program
                array_empty = true; // fill or not the array
        
        time punchcard_fun = new time(); // allocates space for time.java
        menu choice_fun = new menu(); // allocates space for menu.java

        byte[][] punchcard = punchcard_fun.punchcard(); // assigns punchcard to the return of punchcard_fun

        calc_time calc_fun = new calc_time(); // allocates space for calc_time.java

        System.out.println("=== DISCLAIMER ===\nThis program assumes\nyou are not using\nabsurd hours as input\n=== END DISCLAIMER ==");


        while (running) { // while running == true, will keep running the program
            byte choice = choice_fun.choice();

            switch (choice) {
                case 1: late_days = calc_fun.late(punchcard);
                        System.out.println("\nDays punch in late: "+late_days+"\n");
                        break;
                case 2: early_days = calc_fun.early(punchcard);
                        System.out.println("\nDays punched out early: "+early_days+"\n");
                        break;
                case 3: t_min = calc_fun.minutes(punchcard);
                        System.out.println("\nTotal amount of minutes: "+t_min+"\n");
                        break;
                case 4: running = false;
                        break;
                default: System.out.println("Wrong input. Restarting.");
                         break;
            }
        }
    }
}

menu.java

/*
    author: @grumpylion
    description: prints out the menu, wait for user input, returns the input
*/

import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class menu {
    
    private static BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));

    public byte choice() throws IOException {

        String input; // input for stdin
        byte choice; // choice variable

        System.out.println("1 - Punch in late in # of days\n2 - Punch out early in # of days\n3 - Total # of minutes worked in the month\n4 - Exit");
        input = stdin.readLine();
        choice = Byte.parseByte(input);

        return choice;
    }
}

time.java

/*  
    author: @grumpylion
    description: fills in the punch card
 */

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class time {

    private static BufferedReader stdin = new BufferedReader(new InputStreamReader(System.in));

    // returns array of punch in and punch out times
    
    public byte[][] punchcard() throws IOException {

        String input;

        byte days, // number of days
             hour_in, // hour of punch in
             minute_in, // minute of punch in
             hour_out, // hour of punch out
             minute_out; // minute of punch out
        
        // number of working days that month
        System.out.print("Total days:");
        input = stdin.readLine();
        days = Byte.parseByte(input);

        // punchcard array
        byte punch[][] = new byte[days][4];

        // fills the punchcard
        for (byte i = 0; i < days; i++) {
            System.out.println("\n=== DAY "+(i+1)+" ===");

            byte j = 0;
            // asks for punch in hour
            System.out.print("Punch in hour: ");
            input = stdin.readLine();
            hour_in = Byte.parseByte(input);

            // inputs into the array
            punch[i][j] = hour_in;

            j++;

            // asks for punch in minute
            System.out.print("\nPunch in minute: ");
            input = stdin.readLine();
            minute_in = Byte.parseByte(input);

            // inputs into the array
            punch[i][j] = minute_in;

            j++;

            // asks for punch out hour
            System.out.print("\nPunch out hour: ");
            input = stdin.readLine();
            hour_out = Byte.parseByte(input);

            // inputs into the array
            punch[i][j] = hour_out;

            j++;

            // asks for punch out hour
            System.out.print("\nPunch out minute: ");
            input = stdin.readLine();
            minute_out = Byte.parseByte(input);

            // inputs into the array
            punch[i][j] = minute_out;

            j++;
        }

        return punch;
    }

}