OBP2 - priprema2

// MyThread.java

import javax.swing.*;

public class MyThread implements Runnable {

    private JLabel label;
    private String tekst = "";
    static boolean flag = true;

    public MyThread(JLabel labelaProgress) {
        label = labelaProgress;
    }

    public static void setFlag(boolean value){
        flag = value;
    }

    @Override
    public void run() {
        while(flag){
            for(int i=0; i<15; i++){
                try {
                    if(flag){
                        Thread.sleep(250);
                        tekst+="*";
                        label.setText(tekst);
                        if(label.getText().equals("***************")){
                            tekst = "";
                        }
                    }
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }

        }
    }
}

// Prozor.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

public class Prozor extends JFrame implements ActionListener{

    private JPanel panel1, panel2, panel3, panel4;
    private JTextField jTextField, brojnik, nazivnik, rec1, rec2, ispis;
    private JLabel labelaProgress;
    Container container;
    private String rezultatString;

    public Prozor(String title){
        rezultatString = "";
        setTitle(title);
        setSize(500, 500);
        setLayout(new GridLayout(4,1));
        createPanel();
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
        new MyThread(labelaProgress).run();
    }

    private void createPanel() {
        container = getContentPane();
        panel1 = new JPanel();
        panel1.setLayout(new BorderLayout());

        labelaProgress = new JLabel("");
        JButton jButton = new JButton("Zaustavi");
        jButton.addActionListener(this);
        jTextField = new JTextField("", 5);
        panel1.add(labelaProgress, BorderLayout.NORTH);
        panel1.add(jButton, BorderLayout.SOUTH);
        container.add(panel1);

        panel2 = new JPanel();
        panel2.setLayout(new BorderLayout());

        brojnik = new JTextField();
        nazivnik = new JTextField();
        JButton egipatBtn = new JButton("Egipat");
        egipatBtn.addActionListener(this);
        panel2.add(brojnik, BorderLayout.NORTH);
        panel2.add(egipatBtn, BorderLayout.CENTER);
        panel2.add(nazivnik, BorderLayout.SOUTH);
        container.add(panel2);

        panel3 = new JPanel();
        panel3.setLayout(new GridLayout(2,2));

        rec1 = new JTextField();
        rec2 = new JTextField();

        JButton anagram = new JButton("Anagram");
        anagram.addActionListener(this);
        panel3.add(rec1);
        panel3.add(rec2);
        panel3.add(anagram);
        container.add(panel3);

        panel4 = new JPanel();
        panel4.setLayout(new GridLayout(1,1));

        ispis = new JTextField();

        panel4.add(ispis);

        container.add(panel4);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        if(e.getActionCommand().equals("Zaustavi")){
            MyThread.setFlag(false);
        }
        else if(e.getActionCommand().equals("Egipat")){
            int br1 = Integer.parseInt(brojnik.getText()),
            br2 = Integer.parseInt(nazivnik.getText());

            int ceilNB = (int) Math.ceil((float)br2/br1);

            int bn = (int) ((float)br2/br1 - 1/(float)ceilNB);
            int ceilBN = (int) Math.ceil((float));

            rezultatString += br1 + "/" + br2 + "=" + 1 + "/" + ceilNB + "+" + 1 + "/" + ceilBN;
            ispis.setText(rezultatString);

        }
        else if(e.getActionCommand().equals("Anagram")){
            String prvaRec = rec1.getText().toLowerCase().replace(" ", "").trim(), drugaRec = rec2.getText().toLowerCase().replace(" ", "").trim();
            int brojac = 0;

            System.out.println(prvaRec + " " + drugaRec);
            for(int i=0; i< prvaRec.length(); i++){
                for(int j=0; j< drugaRec.length(); j++){
                    if(drugaRec.charAt(j) == prvaRec.charAt(i)){
                        brojac++;
                        break;
                    }
                }
            }
            if(brojac == prvaRec.length()){
                rezultatString += prvaRec + " JESTE ANAGRAM OD " + drugaRec + "\n";
                System.out.println(rezultatString);
                ispis.setText(rezultatString);
            }
        }
    }
}

// Main.java

public class Main {
    public static void main(String[] args) {
        Prozor prozor = new Prozor("Test");
    }
}