Java添加/删除行到JTable? [英] Java add/remove row to JTable?
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问题描述
我试图弄清楚如何在JTabel中添加和删除行。我想根据第一列删除行,这是唯一的ID。
I am trying to figure out how to add and remove rows from a JTabel. I want to remove rows based on the first column which is a unique ID.
我目前正在创建我的表格:
I am currently creating my table like this:
String[] colName = new String[] {
"ID#", "Country", "Name", "Page titel", "Page URL", "Time"
};
Object[][] products = new Object[][] {
{
"867954", "USA", "Todd", "Start", "http://www.url.com", "00:04:13"
}, {
"522532", "USA", "Bob", "Start", "http://www.url.com", "00:04:29"
}, {
"4213532", "USA", "Bill", "Start", "http://www.url.com", "00:04:25"
}, {
"5135132", "USA", "Mary", "Start", "http://www.url.com", "00:06:23"
}
};
table = new JTable(products, colName);
我如何添加新行并删除ID为#的行867954
?
How could i add a new row and delete the row with ID # 867954
?
推荐答案
如果您使用 DefaultTableModel
:
DefaultTableModel dtm = new DefaultTableModel(products, colName);
table = new JTable(dtm);
现在你可以添加和删除行:
Now you can add and remove rows:
dtm.removeRow(0); //remove first row
dtm.addRow(new Object[]{...});//add row
如果您想根据ID删除一行,您可以搜索具有该ID的行并将其删除:
If you want to delete a row based on the ID, you can search for row with that ID and remove it then:
String searchedId = "867954";//ID of the product to remove from the table
int row = -1;//index of row or -1 if not found
//search for the row based on the ID in the first column
for(int i=0;i<dtm.getRowCount();++i)
if(dtm.getValueAt(i, 0).equals(searchedId))
{
row = i;
break;
}
if(row != -1)
dtm.removeRow(row);//remove row
else
...//not found
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