刷新数据的代码如下,但按下按钮后 每次我对文本文件进行更改时,我都需要运行代码。
这是我的代码:
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
// Refresh Button
try {
for (int r = 0; r < 100; r++) { //initializing row
for (int c = 0; c < 4; c++) { //initializing column
jTable1.setValueAt(null, r, c);
}
}
BufferedReader rdfile = new BufferedReader(new FileReader("items.txt"));
String[] item = new String[100];
String[] temp;
int x = 0; //read item
while ((item[x] = rdfile.readLine()) != null) {
temp = item[x].split("\t");
jTable1.setValueAt((1000 + x + 1), x, 0);
for (int j = 1; j < 4; j++) {
jTable1.setValueAt(temp[j - 1], x, j);
}
x++;
}
rdfile.close();
} catch (IOException e) {
}
}