在jTable中汇总一列？ [英] Sum a Column in a jTable?

问题描述

我在尝试从jTable中的列中获取值时遇到问题并总结它们。这是我到目前为止的代码：

I am having a problem trying to get values from a column within a jTable and sum them up. This is the code I have so far:

public void saveTable(){
    for(int i = 0; i < jTable2.getRowCount(); i++){
        int total = 0;
        int Amount = (int) jTable2.getValueAt(i, 5);
        total = Amount+total;
        System.out.println(total);
    }
}

但是我一直得到ClassCastException错误：

However I keep getting ClassCastException Errors specifically:

Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException:      java.lang.String cannot be cast to java.lang.Integer
at my.rcsv1.accounting.DraftInvoice.saveTable(DraftInvoice.java:851)

这是指代码行：

int Amount = (int) jTable2.getValueAt(i, 5);

我需要做些什么才能让它发挥作用？

What do I need to do in order to get this to work?

谢谢！

推荐答案

int Amount = Integer.parseInt(jTable2.getValueAt(i, 5)+"");

会做的事情

这篇关于在jTable中汇总一列？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！