JAVA: SWING Java/SWING nima

• JAVA dasturlarini “look and feel” holatiga keltirish

• Java Foundation Classes (Sun Microsystems) bir qismi

• IFC (Netscape) va JFC (Sun Microsystems) qo’shilgani

• Java Standard Edition 1.2 versiyasidan boshlab paket shaklida qo’shilgan

• GUI controllar java dastur orqali generatsiya qilinadi

• Ko’rinishi va funksionallkin jihatidan Windows, Mac va Linux OS’laridaka

Java Swing class iearxiyasi



Swing API 18 ta public paketlardan iborat

javax.accessibility	javax.swing.plaf	javax.swing.text
javax.swing	javax.swing.plaf.basic	javax.swing.text.html
javax.swing.border	javax.swing.plaf.metal	javax.swing.text.html.parser
javax.swing.colorchooser	javax.swing.plaf.multi	javax.swing.text.rtf
javax.swing.event	javax.swing.plaf.synth	javax.swing.tree
javax.swing.filechooser	javax.swing.table	javax.swing.undo

SWING Layots

AWT va Swing klaslarining layout manager’lari:

BorderLayout

BoxLayout

CardLayout

FlowLayout

GridBagLayout

GridLayout

GroupLayout

SpringLayout

Har bir content pane boshlang’ichda BorderLayout inisalizatsiya qilinadi. BorderLayout componentlarni 5 ta maydonga qo’yadi: top, bottom, left, right, va center.

import java.awt.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.*;
/**

* Created with IntelliJ IDEA.

* User: HUSAN

* Date: 20.01.14

* Time: 0:28

* To change this template use File | Settings | File Templates.

*/

public class Dic extends JFrame {

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setSize(600, 500);

setLayout(new BorderLayout());

setLocationRelativeTo(null);

setResizable(false);

}

private JPanel topPanel; //shimol

private JPanel westPanel; //g'arb

private JPanel southPanel; //janub
private JLabel label = new JLabel("So'zni kiriting");

private JTextField textField1 = new JTextField(10);

private JTextArea natija1 = new JTextArea("Lug'at" ,15, 20);

private JTextArea natija2 = new JTextArea("Lug'at" ,15, 20);

super(title);

init();

fillForm();

setVisible(true);

}

private void fillForm() {

Ok.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

String suz = textField1.getText();

String bh = suz.substring(0, 1);

File resurs = new File("Eng\\"+bh+".B&M");

File res = new File("Uzb\\"+bh+".txt");

natija1.setText("Iltimos, faqat lotincha harflardan foydalaning");

System.exit(0);

}

if (!res.exists()) {

System.exit(0);

}

try {

int i = 0;

StringBuffer buffer1 = new StringBuffer();

StringBuffer buffer2 = new StringBuffer();

while(reader1.ready()) {

String line = reader1.readLine();

if (line.startsWith(suz)) {

buffer1.append(line).append("\n");

i++;

}

if (i==30) break;

natija1.setText(buffer1.toString());

BufferedReader reader2 = new BufferedReader(new FileReader(res));

int j = 0;

while(reader2.ready()) {

String line = reader2.readLine();

if (line.startsWith(suz)) {

buffer2.append(line).append("\n");

j++;

}

if (j==30) break;

natija2.setText(buffer2.toString());

} catch (FileNotFoundException e2) {

e2.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.

} catch (IOException e2) {

e2.printStackTrace(); //To change body of catch statement use File | Settings | File Templates.

}

}

});

JLabel label2 = new JLabel(" Uzbek - English");

JScrollPane scrollPane1 = new JScrollPane(natija1);

scrollPane1.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);

scrollPane1.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);

add(scrollPane1);
natija2.setLineWrap(true);

JScrollPane scrollPane2 = new JScrollPane(natija2);

scrollPane2.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);

scrollPane2.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);

add(scrollPane2);
topPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 20, 20));

topPanel.add(label);

topPanel.add(textField1);

topPanel.add(Ok);

add(topPanel, BorderLayout.NORTH);
westPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 0, 20));

westPanel.add(scrollPane1);

add(westPanel, BorderLayout.WEST);
eastPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 0, 20));

eastPanel.add(scrollPane2);

add(eastPanel, BorderLayout.EAST);
southPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 0, 20));

southPanel.add(label1);

southPanel.add(label2);

add(southPanel, BorderLayout.SOUTH);

}

}

Dasturning main qismi

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

/**

* User: HUSAN

* Date: 20.01.14

* Time: 0:29

* To change this template use File | Settings | File Templates.

*/

public class Main {

Dic dic = new Dic("Lug'at");

JMenuBar menuBar = new JMenuBar();

JMenu fayl = new JMenu("Fayl");

JMenuItem chiqish = new JMenuItem("Chiqish");

chiqish.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

System.exit(0);

}

});

fayl.add(item);

fayl.addSeparator();

fayl.add(chiqish);

JMenu tahrir = new JMenu("Tahrirlash");

JMenu servis = new JMenu("Servis");

JMenu oyna = new JMenu("Oynalar");

JMenu yordam = new JMenu("Yordam");

menuBar.add(fayl);

menuBar.add(tahrir);

menuBar.add(servis);

menuBar.add(oyna);

menuBar.add(yordam);

dic.setJMenuBar(menuBar);

}

}

Kurs ishini bajarish davomida quyidagi xulosalarga ega bo'ldim: bularga qism dasturlarni yaratish, ob'ekt xususiyatlari bilan ishlash, sinflarni shakllantirish kabi tushunchalarni o'zlashtirish .

Ushbu kurs ishida yuqorida ta'kidlab o'tilgan ma'lumotlarni o'zlashtirish bilan bir qatorda JAWA va shu kabi dasturlash tillarida sinflar va ob'ektlar, sinflar orasidagi munosabatlar, ob'eklarga qiymatlarni o'zlashtirish va ulardan foydalanish kabi tushunchalar o'zlashtirildi.

Lug’at yaratishda Jawa muhitidan unumli foydalanildi. Natijalar esa Console rejimida chiqarildi.

1. 
   Майкл Томас, Пратик Пател, Алан Хадсон, Доналд Болл(мл.) Секреты программирования для Internet на Java.- Ventana Press, Ventana Communications Group, U.S.A.,1996, Издательство "Питер Пресс", 1997
   
2. 
   Аарон И.Волш Основы программирования на Java для World Wide Web.- IDG Books Worldwide,Inc.,1996, Издательство "Диалектика",1996
   
3. 
   Кен Арнольд, Джеймс Гослинг Язык программирования Java.- Addison-Wesley Longman,U.S.A.,1996, Издательство "Питер-Пресс", 1997
   
4. 
   Нейл Бартлетт, Алекс Лесли, Стив Симкин Программирование на Java. Путеводитель.- The Coriolis Group,Inc.,1996, Издательство НИПФ "ДиаСофт Лтд.",1996
   
5. 
   Крис Джамса Библиотека программиста Java.- Jamsa Press, 1996, ООО "Попурри", 1996