Program doesn't sort the arraylist. I don't know why.
package pl.codegym.task.task08.task0830;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Arrays;
/*
Zadanie z algorytmami
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String[] tablica = new String[20];
for (int i = 0; i < tablica.length; i++) {
tablica[i] = reader.readLine();
}
sortuj(tablica);
for (String x : tablica) {
System.out.println(x);
}
}
public static void sortuj(String[] tablica) {
ArrayList<String> lista = new ArrayList<>(Arrays.asList(tablica));
Collections.sort(lista);
String a = lista.get(0);
String b = lista.get(19);
//String[] tablica2 = new String[lista.size()];
//lista.toArray(tablica2);
isWiekszeOd(a, b);
}
// Metoda porównywania ciągów: 'a' jest większe niż 'b'
public static boolean isWiekszeOd(String a, String b) {
return a.compareTo(b) > 0;
}
}