/*
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 */
package javaapplication58;

import java.util.Arrays;

/**
 *
 * @author STUDENT
 */
public class JavaApplication58 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {

    Znak[] tab = new Znak[3];
    Znak tab1 = new Znak('a');
    Znak tab2 = new Znak('b');
    Znak tab3 = new Znak('c');

    tab[0] = tab1;
    tab[1] = tab2;
    tab[2] = tab3;

    System.out.println("tablica przed sortowaniem");
    for(Znak w: tab)
        System.out.println(w);

    Arrays.sort(tab, (a, b) -> a.getZnak()-(b.getZnak()));

    System.out.println("tablica po sortowaniu");
    for(Znak i: tab)
        System.out.println(i);
    }

}


package javaapplication58;

/**
 *
 * @author STUDENT
 */
public class Znak {
    private Character znak;

    Znak[] tab = new Znak[3];
    Znak tab1 = new Znak('a');
    Znak tab2 = new Znak('b');
    Znak tab3 = new Znak('c');

    Znak[0] tab = tab1;
    Znak[1] tab = tab2;
    Znak[2] tab = tab3;

    public Character getZnak() {
        return znak;
    }

    public Znak(Character znak) {
        this.znak = znak;
    }

    public void setZnak(Character znak) {
        this.znak = znak;
    }

}