Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package gomoku.aneh; import java.awt.BorderLayout; import java.awt.FlowLayout; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.Socket; import java.net.UnknownHostException; import java.nio.charset.StandardCharsets; import java.util.logging.Level; import java.util.logging.Logger; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import org.json.*; /** * * @author Heri Fauzan */ public class MainForm extends javax.swing.JFrame { JPanel panel; private int state = 0; private javax.swing.JButton[][] boardButton; private Socket socket; private PrintWriter out; private InputStream in; public int userId; /** * Creates new form main */ public MainForm() { try { socket = new Socket("127.0.0.1", 8080); out = new PrintWriter(socket.getOutputStream(), true); in = socket.getInputStream(); } catch (UnknownHostException e) { System.out.println("Unknown host"); System.exit(1); } catch (IOException e) { System.out.println("No I/O"); System.exit(1); } new Thread(new listenner(this)); out.print("GET /\nSec-WebSocket-Key: abcdefghij\n\n"); out.flush(); initComponents(); setLayout(new BorderLayout()); panel = new JPanel(); panel.setLayout(null); add(panel); boardButton = new JButton[20][20]; for (int i = 0; i < 20; i++) for (int j = 0; j < 20; j++) { boardButton[i][j] = new JButton(""); boardButton[i][j].setBounds(i * 20 + 10, j * 20 + 70, 20, 20); panel.add(boardButton[i][j]); } } /** * This method is called from within the constructor to initialize the form. * WARNING: Do NOT modify this code. The content of this method is always * regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents private void initComponents() { jTextField1 = new javax.swing.JTextField(); jComboBox1 = new javax.swing.JComboBox<>(); jButton1 = new javax.swing.JButton(); jButton2 = new javax.swing.JButton(); jButton3 = new javax.swing.JButton(); jButton4 = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jTextField1.setText("jTextField1"); jComboBox1.setModel( new javax.swing.DefaultComboBoxModel<>(new String[] { "Item 1", "Item 2", "Item 3", "Item 4" })); jButton1.setText("nick"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton2.setText("join"); jButton2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton2ActionPerformed(evt); } }); jButton3.setText("create"); jButton3.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton3ActionPerformed(evt); } }); jButton4.setText("Play"); jButton4.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton4ActionPerformed(evt); } }); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addContainerGap() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 103, Short.MAX_VALUE) .addComponent(jComboBox1, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false) .addComponent(jButton2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addComponent(jButton1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED).addComponent(jButton3) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED).addComponent(jButton4) .addContainerGap(369, Short.MAX_VALUE))); layout.setVerticalGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup().addContainerGap().addGroup(layout .createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 20, javax.swing.GroupLayout.PREFERRED_SIZE)) .addGap(9, 9, 9) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE) .addComponent(jButton2).addComponent(jButton3).addComponent(jButton4)) .addContainerGap(237, Short.MAX_VALUE))); pack(); }// </editor-fold>//GEN-END:initComponents private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed System.err.println("button clicked"); if (state == 0) { out.print("nick " + jTextField1.getText()); out.flush(); out.print("list"); out.flush(); } }//GEN-LAST:event_jButton1ActionPerformed private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed if (state == 1) { out.print("join " + (String) jComboBox1.getSelectedItem()); out.flush(); } }//GEN-LAST:event_jButton2ActionPerformed private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton3ActionPerformed if (state == 1) { out.print("create"); out.flush(); } }//GEN-LAST:event_jButton3ActionPerformed private void jButton4ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton4ActionPerformed if (state == 2) { out.print("play"); out.flush(); } }//GEN-LAST:event_jButton4ActionPerformed /** * @param args the command line arguments */ public static void main(String args[]) { /* Set the Nimbus look and feel */ //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) "> /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel. * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html */ try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger.getLogger(MainForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(MainForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(MainForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(MainForm.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } //</editor-fold> //</editor-fold> /* Create and display the form */ java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new MainForm().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JButton jButton1; private javax.swing.JButton jButton2; private javax.swing.JButton jButton3; private javax.swing.JButton jButton4; private javax.swing.JComboBox<String> jComboBox1; private javax.swing.JTextField jTextField1; // End of variables declaration//GEN-END:variables private class listenner implements Runnable { MainForm form; public listenner(MainForm _form) { form = _form; } @Override public void run() throws Exception { try { while (true) { byte[] data = new byte[255]; in.read(data); String x = new String(data, StandardCharsets.UTF_8); String[] token = x.split(" "); System.err.println(x); if (form.state == 0) { form.userId = Integer.parseInt(token[0]); form.state = 1; } else if (form.state == 1) { System.err.println(x); if (x.charAt(0) == '[') { JSONArray obj = new JSONArray(x); for (int i = 0; i < obj.length(); i++) { jComboBox1.addItem("" + obj.getJSONObject(i).getInt("roomId")); } } else if (token[0].equals("OK")) { form.state = 2; System.err.println("OK received"); } } else if (form.state == 2) { } } } catch (IOException ex) { Logger.getLogger(MainForm.class.getName()).log(Level.SEVERE, null, ex); } } } }