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POHow to write an excel table starting from the last value?
 

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  1. POHow to write an excel table starting from the last value?
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    <p>I am using JXL api. I want to fill an excel table that already have content, like:</p> <pre><code>123 321 12324 123 321 231 123 321 343 123 321 454 123 321 565 </code></pre> <p>I am trying to write the next value after the fifth line, but I dont know how to do it. I only know how to create and write an excel table if it is empty. And I know how to read it. I was thinking that first I have to read it, and my array which would contain the values of the table would help me to pick the last value of the table then I would write the other values starting from there. I have these methods:</p> <p>To read:</p> <pre><code>arquivo = new File("C:\\Users\\maniceto\\Desktop\\arq.xls"); planilha = Workbook.getWorkbook(arquivo); Sheet[] abas = planilha.getSheets(); aba = planilha.getSheet(0); matriz = new String[aba.getRows()][aba.getColumns()]; Cell[] cel; for (int i = 0; i &lt; matriz.length; i++) { cel = aba.getRow(i); for (int j = 0; j &lt; matriz[0].length; j++) { matriz[i][j] = cel[j].getContents(); } } System.out.println("Lines " + matriz.length); System.out.println("Columns " + matriz[0].length); System.out.println(""); for (int i = 0; i &lt; matriz.length; i++) { for (int j = 0; j &lt; matriz[0].length; j++) { System.out.print(matriz[i][j] + "\t"); } System.out.println(""); } </code></pre> <p>To write an empty excel table:</p> <pre><code>WritableWorkbook workbookVazio = Workbook.createWorkbook(file); WritableSheet sheet1 = workbookVazio.createSheet("First Sheet", 0); TableModel model = table.getModel(); for (int i = 0; i &lt; model.getColumnCount(); i++) { Label column = new Label(i, 0, model.getColumnName(i)); sheet1.addCell(column); } int j = 0; for (int i = 0; i &lt; model.getRowCount(); i++) { for (j = 0; j &lt; model.getColumnCount(); j++) { Label row = new Label(j, i + 1, model.getValueAt(i, j).toString()); sheet1.addCell(row); } } workbookVazio.write(); workbookVazio.close(); </code></pre>
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