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Java（netbeans）を使用してボタンを無効にして有効にするにはどうすればいいですか？ボタン名がLiveMonitoringでjtextareaにipadrressの出力があるとします。私が望むのは、私がテキストエリアにあるipaddressをいくつか選択するまで、Live Monitoringをその範囲で無効にする必要があるということです。私は、私は、すぐに私はいくつかのテキストを選択すると（偽）とLiveMonitoring.setEnabledでボタンを無効にしている第一のようにそれをやっているJavaを使用してボタンを無効にして有効にする
package zeeshannisar210;
import java.awt.List;
import java.awt.event.ActionEvent;
import java.awt.event.MouseEvent;
import java.io.IOException;
import java.net.Socket;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JCheckBox;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
public class Home extends javax.swing.JFrame {
JCheckBox sh1;
static Socket csocket;
public Home()
{
initComponents();
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jPanel2 = new javax.swing.JPanel();
Home = new javax.swing.JButton();
LiveMonitoring = new javax.swing.JButton();
FileView = new javax.swing.JButton();
Logs = new javax.swing.JButton();
Logout = new javax.swing.JButton();
jLabel1 = new javax.swing.JLabel();
Logs1 = new javax.swing.JButton();
Logs2 = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel2.setBackground(new java.awt.Color(70, 130, 180));
Home.setBackground(new java.awt.Color(70, 130, 180));
Home.setFont(new java.awt.Font("Lucida Handwriting", 1, 14)); // NOI18N
Home.setText("Home");
Home.setBorderPainted(false);
Home.setFocusCycleRoot(true);
Home.setFocusPainted(false);
Home.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
HomeMouseClicked(evt);
}
public void mouseReleased(java.awt.event.MouseEvent evt) {
HomeMouseReleased(evt);
}
});
Home.addChangeListener(new javax.swing.event.ChangeListener() {
public void stateChanged(javax.swing.event.ChangeEvent evt) {
HomeStateChanged(evt);
}
});
Home.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
HomeActionPerformed(evt);
}
});
LiveMonitoring.setBackground(new java.awt.Color(70, 130, 180));
LiveMonitoring.setFont(new java.awt.Font("Lucida Handwriting", 1, 14)); // NOI18N
LiveMonitoring.setText("Live Monitoring");
LiveMonitoring.setBorderPainted(false);
LiveMonitoring.setFocusCycleRoot(true);
LiveMonitoring.setFocusPainted(false);
LiveMonitoring.setFocusable(false);
LiveMonitoring.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseReleased(java.awt.event.MouseEvent evt) {
LiveMonitoringMouseReleased(evt);
}
});
LiveMonitoring.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
LiveMonitoringActionPerformed(evt);
}
});
FileView.setBackground(new java.awt.Color(70, 130, 180));
FileView.setFont(new java.awt.Font("Lucida Handwriting", 1, 14)); // NOI18N
FileView.setText("File View");
FileView.setBorderPainted(false);
FileView.setFocusCycleRoot(true);
FileView.setFocusPainted(false);
Logs.setBackground(new java.awt.Color(70, 130, 180));
Logs.setFont(new java.awt.Font("Lucida Handwriting", 1, 14)); // NOI18N
Logs.setText("Logs");
Logs.setBorderPainted(false);
Logs.setFocusCycleRoot(true);
Logs.setFocusPainted(false);
Logout.setBackground(new java.awt.Color(70, 130, 180));
Logout.setFont(new java.awt.Font("Lucida Handwriting", 1, 14)); // NOI18N
Logout.setText("Logout");
Logout.setBorderPainted(false);
Logout.setFocusCycleRoot(true);
Logout.setFocusPainted(false);
Logout.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
LogoutActionPerformed(evt);
}
});
jLabel1.setFont(new java.awt.Font("Lucida Handwriting", 1, 24)); // NOI18N
jLabel1.setText(" Ease Serve");
Logs1.setBackground(new java.awt.Color(70, 130, 180));
Logs1.setFont(new java.awt.Font("Lucida Handwriting", 1, 14)); // NOI18N
Logs1.setText("Help");
Logs1.setBorderPainted(false);
Logs1.setFocusCycleRoot(true);
Logs1.setFocusPainted(false);
Logs2.setBackground(new java.awt.Color(70, 130, 180));
Logs2.setFont(new java.awt.Font("Lucida Handwriting", 1, 14)); // NOI18N
Logs2.setText("Contact Us");
Logs2.setBorderPainted(false);
Logs2.setFocusCycleRoot(true);
Logs2.setFocusPainted(false);
jTextArea1.setBackground(new java.awt.Color(173, 216, 230));
jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jScrollPane1.setViewportView(jTextArea1);
javax.swing.GroupLayout jPanel2Layout = new javax.swing.GroupLayout(jPanel2);
jPanel2.setLayout(jPanel2Layout);
jPanel2Layout.setHorizontalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(21, 21, 21)
.addComponent(Home, javax.swing.GroupLayout.PREFERRED_SIZE, 106, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(146, 146, 146)
.addComponent(LiveMonitoring, javax.swing.GroupLayout.PREFERRED_SIZE, 185, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(154, 154, 154)
.addComponent(FileView, javax.swing.GroupLayout.PREFERRED_SIZE, 131, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(179, 179, 179)
.addComponent(Logs, javax.swing.GroupLayout.PREFERRED_SIZE, 108, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(189, 189, 189)
.addComponent(Logs1, javax.swing.GroupLayout.PREFERRED_SIZE, 108, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 177, Short.MAX_VALUE)
.addComponent(Logs2)
.addGap(84, 84, 84))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel2Layout.createSequentialGroup()
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(Logout, javax.swing.GroupLayout.PREFERRED_SIZE, 119, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(39, 39, 39))
.addComponent(jScrollPane1)
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(549, 549, 549)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 271, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
jPanel2Layout.setVerticalGroup(
jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(19, 19, 19)
.addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 37, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel2Layout.createSequentialGroup()
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 103, Short.MAX_VALUE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 439, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(46, 46, 46)
.addComponent(Logout, javax.swing.GroupLayout.PREFERRED_SIZE, 46, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(jPanel2Layout.createSequentialGroup()
.addGap(30, 30, 30)
.addGroup(jPanel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(Home, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(LiveMonitoring, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(FileView, javax.swing.GroupLayout.PREFERRED_SIZE, 44, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(Logs, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(Logs1, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(Logs2, javax.swing.GroupLayout.PREFERRED_SIZE, 42, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(0, 0, Short.MAX_VALUE))))
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(0, 0, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jPanel2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
);
pack();
}// </editor-fold>
private void HomeActionPerformed(java.awt.event.ActionEvent evt) {
jTextArea1.setText("Clients ID\t\t\tClients Name\t\t\tClients IPAddress\n");
int i=0;
Connection conn=MySqlConnect.ConnectDB();
String Sql="Select * from clients";
try
{
PreparedStatement pst=conn.prepareStatement(Sql);
ResultSet rs=pst.executeQuery();
while(rs.next())
{
String str=rs.getString("hostname");
String str1=rs.getString("ipaddress");
i=i+1;
jTextArea1.append(i+"\t\t\t"+str+"\t\t\t"+str1+"\n");
}
}
catch(Exception e)
{
JOptionPane.showMessageDialog(null,e);
}
LiveMonitoring.setEnabled(false);
}
private void LiveMonitoringActionPerformed(java.awt.event.ActionEvent evt) {
new LiveMOnitoring().setVisible(true);
this.dispose();
}
private void LogoutActionPerformed(java.awt.event.ActionEvent evt) {
new Login().setVisible(true);
this.dispose();
}
private void LiveMonitoringMouseReleased(java.awt.event.MouseEvent evt) {
}
private void HomeMouseReleased(java.awt.event.MouseEvent evt) {
if (jTextArea1.getSelectedText() != null)
{
LiveMonitoring.setEnabled(true);
String s = jTextArea1.getSelectedText();
}
}
private void HomeStateChanged(javax.swing.event.ChangeEvent evt) {
// TODO add your handling code here:
}
private void HomeMouseClicked(java.awt.event.MouseEvent evt) {
if (jTextArea1.getSelectedText() != null)
{
LiveMonitoring.setEnabled(true);
String s = jTextArea1.getSelectedText();
}
}
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(Home.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Home.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Home.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Home.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Home().setVisible(true);
}
});
}
// Variables declaration - do not modify
public javax.swing.JButton FileView;
public javax.swing.JButton Home;
javax.swing.JButton LiveMonitoring;
public javax.swing.JButton Logout;
public javax.swing.JButton Logs;
public javax.swing.JButton Logs1;
public javax.swing.JButton Logs2;
private javax.swing.JLabel jLabel1;
private javax.swing.JPanel jPanel2;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea jTextArea1;
// End of variables declaration
}
);
}
それisn'y私はIPアドレス
を選択しているものの、もう一度ボタンを有効にします
フルコードを入力できますか？ – Kaushal28
私の質問を編集しました@ Kaushal28 –