Update Row in File

[Scott Eric Catalano]

Hello Group!

I thank you for your help so far and now for a new question. I have added and Update button to my code and the below code does update the ID in the file....however it updates ALL ID's in the file not the one selected. My code is below and I would like to be able to update any field via the texfields. Thanks!

btnUpdate.addActionListener(new ActionListener(){

@Override
public void actionPerformed(ActionEvent e) {
             
// i = the index of the selected row
int i = table.getSelectedRow();
                
if(i >= 0) {
model.setValueAt(textFId.getText(), i, 0);
model.setValueAt(textFRname.getText(), i, 1);
model.setValueAt(textFRnumber.getText(), i, 2);
model.setValueAt(textFCartype.getText(), i, 3);
}

String filepath       = "data.txt";
String newID          = textFId.getText();
String newRoadName    = textFRname.getText();
String newRoadNumber  = textFRnumber.getText();
String newCarType     = textFCartype.getText();

String tempFile = "datatemp.txt";
File oldFile = new File(filepath);
File newFile = new File(tempFile);
String ID         = "";
String RoadName   = "";
String RoadNumber = "";
String CarType    = "";

try {
	
FileWriter     fw = new FileWriter(tempFile, true);
BufferedWriter bw = new BufferedWriter(fw);
PrintWriter    pw = new PrintWriter(bw);
x = new Scanner(new File(filepath));
x.useDelimiter("[,\n]");
while(x.hasNext()) {
ID         = x.next();
RoadName   = x.next();
RoadNumber = x.next();
CarType    = x.next();
if(ID.equals(ID)) {
pw.println(newID + "," + RoadName + "," + RoadNumber + "," + CarType);
} else {
pw.println(ID + "," + RoadName + "," + RoadNumber + "," + CarType);
}

}

x.close();
pw.flush();
pw.close();
oldFile.delete();
File dump = new File(filepath);
newFile.renameTo(dump);
}
catch (Exception e3){
System.out.println("UPDATE ERROR!!");
}

}
});

[Tony Docherty]

Your problem is on line 42

if(ID.equals(ID)) {

When will this not evaluate to true?

[Norm Radder]

Please add proper indentations to your code to make it more readable.  Logically nested statements should be indented.  The posted code has no indentations.