Question

我正在为我的发票使用收据打印机，并参考CLOUGH先生已回复的Post并提供了WAGU库的参考，我写了所有代码，但代码在哪里

 List<List<String>> t2Rows = Arrays.asList(
            Arrays.asList("Optical mouse", "120.00", "20", "2400.00"),
            Arrays.asList("Gaming keyboard", "550.00", "30", "16500.00"),
            Arrays.asList("320GB SATA HDD", "220.00", "32", "7040.00"),
            Arrays.asList("500GB SATA HDD", "274.00", "13", "3562.00"),
            Arrays.asList("1TB SATA HDD", "437.00", "11", "4807.00"),
            Arrays.asList("RE-DVD ROM", "144.00", "29", "4176.00"),
            Arrays.asList("DDR3 4GB RAM", "143.00", "13", "1859.00"),
            Arrays.asList("Blu-ray DVD", "94.00", "28", "2632.00"),
            Arrays.asList("WR-DVD", "122.00", "34", "4148.00"),
            Arrays.asList("Adapter", "543.00", "28", "15204.00")
    );

以上代码值以字符串形式给出并修复，但我必须从jTable添加这些值。

我从jTable获取以下代码

的值

 for (int i = 0; i < tbl_sale.getRowCount(); i++) {

        String pid = tbl_sale.getValueAt(i, 0).toString();
        String item = tbl_sale.getValueAt(i, 1).toString();
        String quant = tbl_sale.getValueAt(i, 2).toString();
        String rate = tbl_sale.getValueAt(i, 3).toString();
        String rs = tbl_sale.getValueAt(i, 4).toString(); 
}

但现在问题是我无法在列表Array.asList中插入这些值。任何人都可以帮我解决这个问题。

由于

Answer 1

尝试这样的事情：

List<List<String>> t2Rows = new ArrayList<List<String>>();

for (int i = 0; i < tbl_sale.getRowCount(); i++) {
    String pid = tbl_sale.getValueAt(i, 0).toString();
    String item = tbl_sale.getValueAt(i, 1).toString();
    String quant = tbl_sale.getValueAt(i, 2).toString();
    String rate = tbl_sale.getValueAt(i, 3).toString();
    String rs = tbl_sale.getValueAt(i, 4).toString();
    ArrayList<String> temp = new ArrayList<String>();
    temp.add(pid);//example I don't know the order you need
    temp.add(item);//example I don't know the order you need
    temp.add(quant);//example I don't know the order you need
    temp.add(rate);//example I don't know the order you need
    temp.add(rs);//example I don't know the order you need
    t2Rows.add(temp); 
}

使用循环从数据库向List <string> Array.asList添加值

1 个答案: