Error: Main method not found in class Pozycja, please define the main method as: public static void main(String[] args) or a

Question

import java.io.*;
import java.util.*;

public class Pozycja {

String nazwaTowaru;
int ileSztuk;
double cena;

public Pozycja (String nazwaTowaru, int ileSztuk, double cena){
this.nazwaTowaru = nazwaTowaru;
this.ileSztuk = ileSztuk;
this.cena = cena;
}

public String getNazwaTowaru(){
return NazwaTowaru;
}
public int getIleSztuk(){
return ileSztuk;
}
public double getCena(){
return cena;
}
public double obliczWartosc(){
return this.ileSztuk*this.cena; /*? */
}
public String toString(){
return String.format("%.20f",nazwaTowaru) + "; " + String.format("%.10f",cena) + " zł; " + String.format("%.4f",ileSztuk) + " szt; " +
String.format("%.10f",obliczWartosc()) + " zł";
}/*? */

public class Zamowienie{

public Pozycja[] pozycje;/*? */
private int ileDodanych;
private int maksRozmiar;

public Zamowienie (){
this.maksRozmiar = 10;
this.ileDodanych = 0;
this.pozycje = new Pozycja[this.maksRozmiar];
}

Zamowienie(int maksRozmiar){
this.maksRozmiar = maksRozmiar;
}
public void dodajPozycje(Pozycja p) {
if(this.pozycje[ileDodanych] == null){
this.pozycje[ileDodanych] = new Pozycja(p.getNazwaTowaru(), p.getIleSztuk(), p.getCena());
this.ileDodanych++;
}
}
public double obliczWartosc (){
double lacznie = 0.0;
for(int i=0; i<ileDodanych; i++){
lacznie += pozycje[i].obliczWartosc();
}
return lacznie;
}
public String toString(){
String napis = "\nZamówienie:\n";
for(int i=0; i<ileDanych; i++){

Answer 1

Ivan

You need a main method to execute your code.
So write another class:

public class TestClass{

public static void main(String[] args){

//here you do all the stuff you want to do with the other classes

}

}

Answer 2

Your code has no main method this is needed as a starting point for your program to run

Answer 3

I structured your code a bit.
You need to rework both toString() methods.

https://code.sololearn.com/cznxQeT4b29T/?ref=app

Answer 4

I don’t know how to insert the main method to make the code work. tried different options

Answer 5

Please help (

Answer 6

write another 3 class or write again? I tried a similar option, but failed. maybe did something wrong

Answer 7

No, you don't need to rewrite anything. Just add another class that contains the main method.

It would be best if you save your code in the code playground and share the link here.

It would also be helpful to explain your other classes as I don't speak polish. ;)

I can look at it tomorrow afternoon/evening.

Answer 8

https://code.sololearn.com/cD0dU7nFz7tz/?ref=app

Answer 9

ready, with english translation. thanks

Answer 10

https://code.sololearn.com/cKNET7tkD9DH/?ref=app

Answer 11

Bjh