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POAfter executing only one button, the frame closes
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copied!<pre><code>import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.FileNotFoundException; import java.io.IOException; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JTextArea; public class Main { private static void createAndShowGUI() { JFrame frame1 = new JFrame("FINAL YEAR PROJECT VER 1.0"); JTextArea test = new JTextArea(200, 200); frame1.setSize(500,500); frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame1.add(test); FlowLayout experimentLayout = new FlowLayout(); experimentLayout.setAlignment(FlowLayout.CENTER); frame1.setLayout(experimentLayout); JButton button = new JButton("Extract Links"); JButton button1 = new JButton("Render To Text"); JButton button2 = new JButton("Calculate Similarity"); JButton button3 = new JButton("File Search"); JButton button4 = new JButton("Exit"); //Add action listener to button button.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { SimpleWebCrawler.main(null); } catch (IOException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } }); //Add action listener to button 1 button1.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { RenderToText.main(null); } catch (IOException e1) { e1.printStackTrace(); } } }); button2.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { readFile.main(null); } catch (FileNotFoundException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } }); button3.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { try { FileInput.main(null); } catch (FileNotFoundException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } } }); button4.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { System.exit(0); } }); frame1.getContentPane().add(button); frame1.getContentPane().add(button1); frame1.getContentPane().add(button2); frame1.getContentPane().add(button3); frame1.getContentPane().add(button4); frame1.setVisible(true); } public static void main(String[] args) { javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGUI(); } }); } } </code></pre> <p>This is a code for creating a frame with 5 buttons. Each buttons has their own functions. The problem i facing now is , after i click the first button, the code runs for the first button, and after that the frame closes. How do i maintain the frame after the first button code run, allowing me to click other button after the first button run. </p>

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