Help with JOptionPane.showMessageDialog(text does not fit correctly)

I am having a Problem with my output not fitting correctly. Is there a way to resize a JOptionPane.showMessageDialog window? Or do I have to use a different method to show my output? If you need to see the code for my GUI let me know and I can post it as well.
Code :
  private void checkRecActionPerformed(java.awt.event.ActionEvent evt) {                                         
         try {
            Connection conn= DriverManager.getConnection("jdbc:mysql://127.0.0.1/abccomp", "root", "root");
            Statement stmt = conn.createStatement();
            ResultSet rs;
 
            rs = stmt.executeQuery("SELECT * FROM orders;");
 
            String createdBy;
            String date;
            int orderNum;
            int numNotebooks;
            int numPencils;
            int numPens;
            int numPaper;
            int numStickers;
            int numPaperClips;
            int numHighlighters;
            int numOfficeChairs;
            int numMarkers;
            String recOrd = "";
 
            while ( rs.next() )
            {
                createdBy = rs.getString("createdby");
		date = rs.getString("DateCreated");
                orderNum = rs.getInt("ordernum");
                numNotebooks = rs.getInt("number_of_Notebooks");
                numPencils = rs.getInt("number_of_Pencils");
                numPaper = rs.getInt("number_of_Paper");
                numStickers = rs.getInt("number_of_Stickers");
                numPaperClips = rs.getInt("number_of_PaperClips");
                numHighlighters = rs.getInt("number_of_Highlighters");
                numOfficeChairs = rs.getInt("number_of_OfficeChairs");
                numMarkers = rs.getInt("number_of_Markers");
 
                recOrd += "Order number:" + orderNum + "\nDate:" + date
                 + "\nOrder created by:" + createdBy + "Order Details:\n"
                 + numNotebooks + ":Notebooks" + numPencils + ":Pencils"
                 + numPaper + ":Paper" + numStickers + ":Stickers"
                 + numPaperClips + ":Paper Clips" + numHighlighters
                 + ":Highlighters" + numOfficeChairs + ":Office Chairs" 
                 + numMarkers + ":Markers\n\n";
            }
 
            JOptionPane.showMessageDialog(null, recOrd, "Recent Orders",JOptionPane.PLAIN_MESSAGE);
 
            conn.close();
            }
           catch (Exception e) {
            System.err.println("Got an exception! ");
            System.err.println(e.getMessage());
            }
 
 
    }                                        
 
    private void checkInvActionPerformed(java.awt.event.ActionEvent evt) {                                         
        try {
            Connection conn= DriverManager.getConnection("jdbc:mysql://127.0.0.1/abccomp", "root", "root");
            Statement stmt = conn.createStatement();
            ResultSet rs;
 
            rs = stmt.executeQuery("SELECT * FROM inventory;");
 
            int number;
            String product;
            String inv = "";
 
            while ( rs.next() )
            {
                number = rs.getInt("number in stock");
		product = rs.getString("product");
                inv += product +":"+ number +"\n";
            }
 
            JOptionPane.showMessageDialog(null, "Inventory in stock\n" + inv, "Inventory in stock", JOptionPane.PLAIN_MESSAGE);
 
            conn.close();
          } catch (Exception e) {
            System.err.println("Got an exception! ");
            System.err.println(e.getMessage());
        }
    }
Thanks in advance,
Chris