Java Swing Invoice String.format renvoyant uniquement la valeur() {} à JTextPane?

Question

Le travail d'impression n'imprime qu'une seule ligne à partir de JTable. Seulement obtenir une sortie en entrant une ou plusieurs rangées:

public void invoice_job() { 
    try { 

     int rows=JTable.getRowCount(); 

     for (int row = 0; row<rows; row++) {  

      Names = (String)JTable.getValueAt(row, 0); 
      Quanti = (String)JTable.getValueAt(row, 1); 
      Prices = (Double)JTable.getValueAt(row, 2); 

      String head = String.format("%30s\n\n", " Invoice Reciept "); 
      String s = String.format("%-15s %5s %10s\n", "Item",  "Qty",  "Price"); 
      String s1 = String.format("%-15s %5s %10s\n","---------","--------"," ----------");        
      String line = String.format("%-15s %5s %10.2f\n",Names,Quanti,Prices); 
      String lin2 = String.format("%-15s\n","-------------------------------------"); 
      String Total = String.format("%37s\n","Total"); 
      String total = String.format("%37s\n\n",lbl.getText());    
      String footer = String.format("%-15s\n", "Meridon sweets and bakers\nSince 1987\nPoint of sale system\nPowered by msofttech\nwww.msofttech.net"); 
      String output = head + s + s1 + line + lin2 + Total + total + footer;    
      textPane.setText(output); 
      textPane.setText(output); 
      textPane.setText(output); 
      textPane.setText(output); 
      JOptionPane.showMessageDialog(null, output); 

     }  

     PrinterJob printerJob = PrinterJob.getPrinterJob(); 
     PageFormat pageFormat = printerJob.defaultPage(); 
     Paper paper = new Paper(); 
     paper.setSize(180.0, (double) (paper.getHeight() + rows * 10.0)); 
     paper.setImageableArea(rows, rows, paper.getWidth() - rows * 2, 
     paper.getHeight() - rows * 2); 
     pageFormat.setPaper(paper); 
     pageFormat.setOrientation(PageFormat.PORTRAIT); 
     printerJob.setPrintable(textPane.getPrintable(null, null), pageFormat); 
     printerJob.print(); 

    } 
    catch (Exception e) { 
     e.printStackTrace(); 
    } 

entrée:

entrée sont 2 éléments.

sortie:

sortie est un seul élément.

Answer 1

Essayez ce code ci-dessous:

public void invoice_job() 
    { 



    try 
    { 

     int rows=JTable.getRowCount(); 
     String head = String.format("%30s\n\n", " Invoice Reciept "); 
     String s = String.format("%-15s %5s %10s\n", "Item",  "Qty",  "Price"); 
     String s1 = String.format("%-15s %5s %10s\n","---------","--------"," ----------");  
     String output = head + s + s1; 
     for(int row = 0; row<rows; row++) 

     { 

     String Names = (String)JTable.getValueAt(row, 0); 
     String Quanti = (String)JTable.getValueAt(row, 1); 
     String Prices = (Double)JTable.getValueAt(row, 2); 

     String line = String.format("%-15s %5s %10.2f\n",Names,Quanti,Prices); 
     output += line; 
     String lin2 = String.format("%-15s\n","-------------------------------------"); 
     output += lin2; 



     } 

     String Total = String.format("%37s\n","Total"); 
     String total = String.format("%37s\n\n",lbl.getText()); 
     String footer = String.format("%-15s\n", "Meridon sweets and bakers\nSince 1987\nPoint of sale system\nPowered by msofttech\nwww.msofttech.net"); 
     output += Total + total + footer; 
     textPane.setText(output); 

     JOptionPane.showMessageDialog(null, output); 


     PrinterJob printerJob = PrinterJob.getPrinterJob(); 
     PageFormat pageFormat = printerJob.defaultPage(); 
     Paper paper = new Paper(); 
     paper.setSize(180.0, (double) (paper.getHeight() + rows * 10.0)); 
     paper.setImageableArea(rows, rows, paper.getWidth() - rows * 2, paper.getHeight() - rows * 2); 
     pageFormat.setPaper(paper); 
     pageFormat.setOrientation(PageFormat.PORTRAIT); 
     printerJob.setPrintable(textPane.getPrintable(null, null), pageFormat); 
     printerJob.print(); 

    } 
    catch (Exception e) 
    { 

     e.printStackTrace(); 
    } 
} 

Vous devez ajouter une ligne pour chaque ligne dans le volet texte.