Urosevic 27.11.2015

VINDOUZ APLIKACIJE


====================
import javax.swing.*;
public class Win1 extends JFrame{
    public Win1(){
        super("Nasa prva Win app");
        setSize(300, 100);
    }
    public static void main(String[] args) {
        Win1 w1;
        w1 = new Win1();
        w1.show();
    }

}

====================
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Win2 extends JFrame{
    JButton btRadi;
    class RadiListener implements ActionListener{
        public void actionPerformed(ActionEvent e){
            e.getSource();
            System.out.println("STOP IT!");
        }
    }
    public Win2(){
        super("App with one pointless button.");
        setSize(400, 100);
        Container cp = this.getContentPane();
        cp.setLayout(new FlowLayout());
        btRadi = new JButton("Radi");
        btRadi.addActionListener(new RadiListener());
        cp.add(btRadi);
        //Drugi nacin cp.add(btRadi = new JButton("Radi"));
    }
    public static void main(String args[]){
        Win2 w2 = new Win2();
        w2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        w2.show();
    }
}

===================
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Win3 extends JFrame implements ActionListener{
    JButton btRadi1, btRadi2, btRadi3;
    public Win3(){
        super("Win3");
        setSize(420, 200);
        Container cp = this.getContentPane();
        cp.setLayout(new FlowLayout());
        cp.add(btRadi1 = new JButton("Radi 1"));
        btRadi1.addActionListener(this);
        cp.add(btRadi2 = new JButton("Radi 2"));
        btRadi2.addActionListener(this);
        cp.add(btRadi3 = new JButton("Radi 3"));
        btRadi3.addActionListener(this);
    }
    public void actionPerformed(ActionEvent e){
        System.out.println("Pritisnuto je dumge "+e.getActionCommand());
    }
    public static void main(String[] args) {
        Win3 w3 = new Win3();
        w3.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        w3.show();
    }

}

=================
import javax.swing.*;

import java.awt.*;
import java.awt.event.*;
public class Win4 extends JFrame implements ActionListener{
    private JLabel lb1, lb2, lbRez;
    private JTextField tf1, tf2, tfRez;
    private JButton btSaberi, btOduzmi;
    public Win4(){
        super("Sabirac/Oduzimac");
        setSize(200, 420);
        Container cp = this.getContentPane();
        //cp.setLayout(new FlowLayout());
        cp.setLayout(new GridLayout(4,2));
        cp.add(lb1 = new JLabel("Broj 1: "));
        cp.add(tf1 = new JTextField(15));
        cp.add(lb2 = new JLabel("Broj 2: "));
        cp.add(tf2 = new JTextField(15));
        cp.add(lbRez = new JLabel("Rezultat: "));
        cp.add(tfRez = new JTextField(15));
        tfRez.setEditable(false);
        cp.add(btSaberi = new JButton("Saberi"));
        btSaberi.addActionListener(this);
        cp.add(btOduzmi = new JButton("Oduzmi"));
        btOduzmi.addActionListener(this);
    }
    public void actionPerformed(ActionEvent e){
        double broj1, broj2, rez;
        String str;
        try{
        str = tf1.getText();
        broj1 = Double.parseDouble(str);
        str = tf2.getText();
        broj2 = Double.parseDouble(str);
        //if (e.getActionCommand().equals("Saberi"))
        //  rez  = broj1 + broj2;
        //else
        //  rez = broj1 - broj2;
        if (e.getSource() == btSaberi)
            rez = broj1 + broj2;
        else
            rez = broj1 - broj2;
        tfRez.setText(Double.toString(rez));
        }catch (Exception ee){
            tfRez.setText("Nepravilno zadat neki broj!");
        }
    }
    public static void main(String[] args) {
        Win4 w4 = new Win4();
        w4.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        w4.show();
    }

}

===================
import javax.swing.*;

import java.awt.*;
import java.awt.event.*;
public class Win5 extends JFrame{
    JComboBox cb;
    public Win5(){
        super("Qwerty");
        String imena[]= {"Marko", "Pera", "Laza", "Zika", "Mika"};
        setSize(120, 100);
        Container cp = this.getContentPane();
        cp.setLayout(new FlowLayout());
        cb = new JComboBox();
        for (int k = 0; k < imena.length; k++)
            cb.addItem(imena[k]);
        cp.add(cb);
    }
    public static void main(String[] args) {
        Win5 w5 = new Win5();
        w5.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        w5.show();
    }

}