Design Function in Java

So recently I created a currency converter in Java. The GUI was completely done using the design function. I closed the design function and I am wondering if there's anyway to edit the GUI after this, because the code that the design function outputs is definitely odd. Here's the GUI code.

public HorizontalView() {

initComponents();



}



@SuppressWarnings("unchecked")



private void initComponents() {

PBactionListener ButtonListener = new PBactionListener();



jTextField1 = new javax.swing.JTextField();



jComboBox1 = new javax.swing.JComboBox();



jLabel1 = new javax.swing.JLabel();



jComboBox2 = new javax.swing.JComboBox();



jButton1 = new javax.swing.JButton();



jButton1.addActionListener(ButtonListener);



jTextField2 = new javax.swing.JTextField();



jTextField3 = new javax.swing.JTextField();



setDefaultCloseOperation(javax.swing.WindowConstan ts.EXIT_ON_CLOSE);



jTextField1.setFont(new java.awt.Font("Arial", 0, 18));



jTextField1.setHorizontalAlignment(javax.swing.JTe xtField.RIGHT);



jTextField1.setText("1");



jTextField1.addActionListener(new java.awt.event.ActionListener()



{



public void actionPerformed(java.awt.event.ActionEvent evt) {



jTextField1ActionPerformed(evt);



}



});



jComboBox1.setFont(new java.awt.Font("Arial", 0, 18)); // NOI18N



for (int x = 0; x<148; x++) {jComboBox1.addItem(StringArray[x]);}



jLabel1.setFont(new java.awt.Font("Arial", 1, 18)); // NOI18N



jLabel1.setText("Converts to:");

jComboBox2.setFont(new java.awt.Font("Arial", 0, 18)); // NOI18N



for (int x = 0; x<148; x++) {jComboBox2.addItem(String1Array[x]);}



jButton1.setFont(new java.awt.Font("Arial", 1, 18)); // NOI18N



jButton1.setText("Convert");

jTextField2.setEditable(false);



jTextField2.setFont(new java.awt.Font("Arial", 1, 24)); // NOI18N



jTextField2.setText("Amount...");

jTextField3.setEditable(false);



jTextField3.setFont(new java.awt.Font("Arial", 1, 24)); // NOI18N



jTextField3.setText("$$$p00nz!");

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.G roupLayout.Alignment.LEADING, false)



.addGroup(layout.createSequentialGroup()



.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 164, javax.swing.GroupLayout.PREFERRED_SIZE)

.addComponent(jComboBox1, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))



.addGroup(layout.createSequentialGroup()



.addComponent(jLabel1)

.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.LEADING)



.addGroup(layout.createSequentialGroup()



.addComponent(jComboBox2, javax.swing.GroupLayout.PREFERRED_SIZE, 298, javax.swing.GroupLayout.PREFERRED_SIZE)



.addPreferredGap(javax.swing.LayoutStyle.Component Placement.RELATED)



.addComponent(jButton1)



.addGap(0, 0, Short.MAX_VALUE))



.addComponent(jTextField2))))



.addContainerGap(javax.swing.GroupLayout.DEFAULT_S IZE, Short.MAX_VALUE))



);



layout.setVerticalGroup(



layout.createParallelGroup(javax.swing.GroupLayout .Alignment.LEADING)



.addGroup(layout.createSequentialGroup()



.addContainerGap()



.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.BASELINE)



.addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)



.addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))

.addGroup(layout.createParallelGroup(javax.swing.G roupLayout.Alignment.BASELINE)



.addComponent(jComboBox2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)



.addComponent(jLabel1)



.addComponent(jButton1))

.addComponent(jTextField2, javax.swing.GroupLayout.DEFAULT_SIZE, 89, Short.MAX_VALUE)



.addContainerGap())



);



pack();



}

private void jTextField1ActionPerformed(java.awt.event.ActionEv ent evt) {



}

public static void main(String args[]) {



try {



for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {



if ("Nimbus".equals(info.getName())) {



javax.swing.UIManager.setLookAndFeel(info.getClass Name());



break;



}



}



} catch (ClassNotFoundException ex) {



java.util.logging.Logger.getLogger(HorizontalView. class.getName()).log(java.util.logging.Level.SEVER E, null, ex);



} catch (InstantiationException ex) {



java.util.logging.Logger.getLogger(HorizontalView. class.getName()).log(java.util.logging.Level.SEVER E, null, ex);



} catch (IllegalAccessException ex) {



java.util.logging.Logger.getLogger(HorizontalView. class.getName()).log(java.util.logging.Level.SEVER E, null, ex);



} catch (javax.swing.UnsupportedLookAndFeelException ex) {



java.util.logging.Logger.getLogger(HorizontalView. class.getName()).log(java.util.logging.Level.SEVER E, null, ex);



}



java.awt.EventQueue.invokeLater(new Runnable() {



public void run() {



new HorizontalView().setVisible(true);



}



});



}

private javax.swing.JButton jButton1;



private javax.swing.JComboBox jComboBox1;



private javax.swing.JComboBox jComboBox2;



private javax.swing.JLabel jLabel1;



private javax.swing.JLabel jLabel2;



private javax.swing.JTextField jTextField1;



private javax.swing.JTextField jTextField2;



private javax.swing.JTextField jTextField3;