Get cell values of jtable

Question

I have a jtable with column item,quantity,rate and amount.If i enter value in quantity and press tab key the total amount is getting calculated that is working fine.But i need the amount to be calculated on typing the quantity. I want it to be done on key pressed of numbers or on typing number.I have used default jtable using netbeans

Answer 1

要获取单元格值，您可以执行类似的操作

table.getModel().getValueAt(rowIndex, columnIndex)

Answer 2

In response to an answer suggesting getValueAt() , you say, "I used the above code but it prints as null ." As discussed here , the value is not available in the model until the editor concludes. You'll need a custom TableCellEditor that uses a DocumentListener to update your total.