txt File to Jtable Array List - arrays

Question

Hi i have a jtable in witch i want to save and load from a txtfile.
Now i have achived that but now im wondering in witch manner could i import the data into a already created arraylist.
Import Code
String filePath = "C:\\Users\\ellim\\Desktop\\TitanPanel\\TitanPanel.txt";
File file = new File(filePath);
try {
FileReader fr = new FileReader(file);
BufferedReader br = new BufferedReader(fr);
DefaultTableModel model = (DefaultTableModel) tbl_panels.getModel();
Object[] lines = br.lines().toArray();
for (int i = 0; i < lines.length; i++) {
String[] row = lines[i].toString().split(" ");
model.addRow(row);
}
} catch (FileNotFoundException ex) {
Logger.getLogger(PanelTable.class.getName()).log(Level.SEVERE, null, ex);
}
Export Code
String filePath = "C:\\Users\\ellim\\Desktop\\TitanPanel\\TitanPanel.txt";
File file = new File(filePath);
try {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int i = 0; i < tbl_panels.getRowCount(); i++) {
for (int j = 0; j < tbl_panels.getColumnCount(); j++) {
bw.write(tbl_panels.getValueAt(i, j).toString() + " ");
}
bw.newLine();
}
bw.close();
fw.close();
} catch (IOException ex) {
Logger.getLogger(PanelTable.class.getName()).log(Level.SEVERE, null, ex);
}
}
Arraylist i want to save into
ArrayList documentos;

Answer 1

Here is code for ArrayList export
ArrayList<String> documentos = new ArrayList<String>();
// here i am using , as separator
ArrayListExporter exporter = new ArrayListExporter ( documentos , "," );
exporter.export( tbl_panels );
public interface TableDataExporter {
public void export( JTable table );
}
public class FileExporter implements TableDataExporter {
private String fileName;
private String separator ;
public FileExporter( String fileName,String separator ) {
this.fileName=fileName;
this.separator=separator;
}
public void export( JTable table ) {
File file = new File(fileName);
try {
FileWriter fw = new FileWriter(file);
BufferedWriter bw = new BufferedWriter(fw);
for (int i = 0; i < tbl_panels.getRowCount(); i++) {
for (int j = 0; j < tbl_panels.getColumnCount(); j++) {
if( j != 0 ) {
bw.write( separator );
}
bw.write(tbl_panels.getValueAt(i, j).toString() );
}
bw.newLine();
}
bw.close();
fw.close();
} catch (IOException ex) {
Logger.getLogger(PanelTable.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
public class ArrayListExporter implements TableDataExporter {
private List<String> list;
private String separator;
public FileExporter( List<String> list,String separator ) {
this.list=list;
this.separator=separator;
}
public void export( JTable table ) {
StringBuilder builder = new StringBuilder();
for (int i = 0; i < tbl_panels.getRowCount(); i++) {
builder.delete(0,builder.length());
for (int j = 0; j < tbl_panels.getColumnCount(); j++) {
if( j != 0 ) {
builder.append( separator );
}
Object obj = tbl_panels.getValueAt(i, j);
builder.append( obj == null ? "null" : obj.toString() );
}
}
}
}