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POButton action to change the color of all tabbedpane panel java swing
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  1. POButton action to change the color of all tabbedpane panel java swing
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    copied!<p>I have 2 tab(A and B) in tabbedpane. In A, I write only setBackground(Color.RED);</p> <p>In B, I put a Button. and the codes likes that:</p> <pre><code>A a=new A(); jButton1.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub a.setBackground(Color.BLUE); } }); </code></pre> <p>I want to change the color of A from B's button action. But I failure. How can i solve this problem??</p> <p>Thanks in advance...</p> <hr> <p>still my problem not solved. I am posting the whole code:: I used 2 package: "ok","ok1". "ok" contains 1 file named save.java and the code is: </p> <pre><code>public class Save extends javax.swing.JFrame { private JPanel panel1; private JPanel panel2;A a=new A();B b=new B(); public Save() { initComponents(); } //GEN-BEGIN:initComponents // &lt;editor-fold defaultstate="collapsed" desc="Generated Code"&gt; private void initComponents() { panel1=a.initComponents(); panel2=b.initComponents(); jTabbedPane1 = new javax.swing.JTabbedPane(); jScrollPane1 = new javax.swing.JScrollPane(); jScrollPane2 = new javax.swing.JScrollPane(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jTabbedPane1.addTab("Tab 1", null, panel1, "Just Panel"); jTabbedPane1.setMnemonicAt(0, KeyEvent.VK_1); jTabbedPane1.addTab("Tab 2", null, panel2, "Button"); jTabbedPane1.setMnemonicAt(1, KeyEvent.VK_2); </code></pre> <hr> <p>"ok1" contains 2 file: A.java and B.java..... A.java:::::::: </p> <pre><code> public class A extends javax.swing.JPanel { /** Creates new form A */ public A() { initComponents(); } /** 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. */ //GEN-BEGIN:initComponents // &lt;editor-fold defaultstate="collapsed" desc="Generated Code"&gt; public JPanel initComponents() { jPanel11 = new javax.swing.JPanel(); javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout( jPanel11); jPanel11.setLayout(jPanel1Layout); </code></pre> <hr> <p>B.java:::::::: </p> <pre><code> public class B extends javax.swing.JPanel { A a = new A(); /** Creates new form B */ public B() { initComponents(); } /** 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. */ //GEN-BEGIN:initComponents // &lt;editor-fold defaultstate="collapsed" desc="Generated Code"&gt; public JPanel initComponents() { jPanel1 = new javax.swing.JPanel(); jButton1 = new javax.swing.JButton(); jButton1.setText("Action"); jButton1.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { // TODO Auto-generated method stub a.jPanel11.setBackground(Color.RED); } }); </code></pre>
 

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