Thread: HELP PLEASE! How to save and call back user data input.

Hi everyone! My project is creating a timetable and the user can input the data his/herself to the timetable which best fits their own schedule. However currently im hardcoding the data in the code. I would like to know how do i get the data input and then be able to save and be able to call back the data whenever i run the program? THANK YOU VERY MUCH!

 
import javax.swing.JTable;
import javax.swing.event.TableModelEvent;
import javax.swing.event.TableModelListener;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import java.awt.*;
import java.awt.event.*;
import javax.swing.table.TableModel;
 
 
public class TimeTable extends JFrame implements TableModelListener {
 
 
 
 
 
public TimeTable(){
super("TimeTable");
 
Object[][] data = {
{"Monday", "", 
"", "TCP/IP LECTURE", "TCP/IP LECTURE","TCP/IP Tutorial","Break","OOP","OOP","OOP"},//1
 
{"Tuesday", "","", "Network Management Lecture","Network Management Lecture","Break","OOP Lecture","OOP Lecture","WNet Lecture","WNet Lecture"},//2
 
{"Wednesday", "TCP/IP Practical",
"TCP/IP Practical", "Wnet Tutorial", "","","","","",""},//3
 
{"Thursday", "",
"", "Network Management Prac", "Network Management Prac","Break","WNet Prac","WNet Prac","Network Management Tutorial",""},//4
 
{"Friday", "FYP",
"FYP", "FYP", "FYP","","","","",""},//5
 
{"Saturday", "Wake Up",
"Prepare Bag and Things for outing", "", "Meet at Jurong East","","","","",""},//6
 
{"Sunday", "Lih",
"Teaching high school", "", "","","","","",""},//7
 
 
 
};
 
String[] columnNames = {"Day", 
"8am-9am",
"9am-10am",
"10am-11am",
"11am-12pm",
"12pm-1pm",
"1pm-2pm",
"2pm-3pm",
"3pm-4pm",
"4pm-5pm",
 
};
 
 
 
final JTable table = new JTable(data, columnNames);
table.getModel().addTableModelListener(this);
table.setPreferredScrollableViewportSize(new Dimension(900, 500));
//Set Cell Heigh and Width//
table.setRowHeight(0,90); 
table.getColumnModel().getColumn(0).setWidth(90); //1
 
table.setRowHeight(1,90); 
table.getColumnModel().getColumn(1).setWidth(90); //2
 
table.setRowHeight(2,90); 
table.getColumnModel().getColumn(2).setWidth(90); //3
 
table.setRowHeight(3,90); 
table.getColumnModel().getColumn(3).setWidth(90); //4 
 
table.setRowHeight(4,90); 
table.getColumnModel().getColumn(4).setWidth(90); //5
 
table.setRowHeight(5,90); 
table.getColumnModel().getColumn(5).setWidth(90); //6
 
table.setRowHeight(6,90); 
table.getColumnModel().getColumn(6).setWidth(90); //7
 
table.setRowHeight(7,90); 
table.getColumnModel().getColumn(7).setWidth(90); //8
 
table.setRowHeight(8,90); 
table.getColumnModel().getColumn(8).setWidth(90); //9
 
table.setRowHeight(10,90); 
table.getColumnModel().getColumn(9).setWidth(90); //10
/////////////////////////////////////
 
 
 
//Create the scroll pane and add the table to it. 
JScrollPane scrollPane = new JScrollPane(table);
 
//Add the scroll pane to this window.
getContentPane().add(scrollPane, BorderLayout.CENTER);
 
 
 
}	
 
 
 
public static void main(String[] args) {
TimeTable frame = new TimeTable();
frame.pack();
frame.setVisible(true);
}
 
 
 
 
 
 
@Override
public void tableChanged(TableModelEvent e) {
int row = e.getFirstRow();
int column = e.getColumn();
TableModel model = (TableModel)e.getSource();
String columnName = model.getColumnName(column);
Object data = model.getValueAt(row, column);
 
 
}
}

Well, I've always saved user input and data by having the program create a text file and then read from the text file the next time the program is run. Check out the File class in the API, as well as Scanner, BufferedReader, and PrintWriter.

You can also use database to manage the whole schedule. File handling is also a solution.

Duplicate of this thread: http://www.javaprogrammingforums.com...ata-input.html