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copied!<p><code>If someone can help me, leave a comment below please!</code> </p> <ul> <li><p>why please you are you going to smash with your head wall, <code>JScrollPane</code> is designated for Dynamic, Resizable <code>LayoutManager</code>, <code>AbsoluteLayout</code> can broken this its basic properties</p></li> <li><p>starting from top</p> <ol> <li><p><code>public class app extends JFrame {</code></p> <ul> <li><code>public class App {</code> ---> Java Naming Conventions</li> <li>and not extends anything, create <code>JFrame</code> as local variable</li> </ul></li> <li><p><code>new app();</code> ---> se Oracle tutorial Initial Thread</p></li> <li><p>create another <code>JPanel</code>, put there <code>JTextField</code> and <code>JButton</code> </p></li> <li><p>did you overlay something <code>tf1.setBounds(5,5,this.getWidth()-120,20);</code></p></li> <li><p><code>NullLayout</code> doesn't works correctly without using <code>Insets</code></p></li> <li><p>change built_in <code>FlowLayout</code> for <code>JPanel painel = new JPanel(null);</code> to <code>BorderLayout</code>, there put <code>JScrollPane</code> with <code>JTextArea</code> to <code>CENTER area</code></p></li> <li><p>you can to put <code>JScrollPane</code> with <code>JTextArea</code> to <code>JFrames CENTER area</code> directly and another <code>JPanel</code> with <code>JTextField</code> and <code>JButton</code> to <code>SOUTH</code> or <code>NORTH</code>, <code>JFrame</code> has <code>BorderLayout</code> implemented in API</p></li> <li><p><code>JScrollPane</code> showing <code>JScrollbars</code> only in the case that its <code>Dimension</code> is smaller than <code>JComponent</code> placed there</p></li> <li><p>use <code>JFrame.pack()</code> instead of <code>setSize</code>, this line should be before <code>setVisible</code></p></li> </ol></li> </ul>

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