Sunday, January 24, 2016
List Of Objects - Car list
//Car Class
========
package carexample;
/**
*
* @author zbawk
*/
public class Car {
private String make;
private String model;
private int year;
private int mileage;
private double price;
public Car(String make, String model, int year, int mileage, double price) {
this.make = make;
this.model = model;
this.year = year;
this.mileage = mileage;
this.price = price;
}
public String getMake() {
return make;
}
public String getModel() {
return model;
}
public int getYear() {
return year;
}
public int getMileage() {
return mileage;
}
public double getPrice() {
return price;
}
public void setMileage(int mileage) {
this.mileage = mileage;
}
public void setPrice(double price) {
this.price = price;
}
}
//====================================================================
package carexample;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.NumberFormat;
import java.util.ArrayList;
import java.util.Locale;
import javax.swing.JOptionPane;
import javax.swing.table.DefaultTableModel;
/**
*
* @author lzerrouki
*/
public class ObjectsFrame extends javax.swing.JFrame {
ArrayList<Car> carsList = new ArrayList<Car>();
/**
* Creates new form ObjectsFrame
*/
public ObjectsFrame() {
initComponents();
//add action event to the jbtnSaveToList
jbtnSaveToList.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
//read car data
String make = jtxtMake.getText();
String model = jtxtModel.getText();
int year = Integer.parseInt(jtxtYear.getText());
int mileage = Integer.parseInt(jtxtMileage.getText());
double price = Double.parseDouble(jtxtPrice.getText());
//create a car object
Car car = new Car(make,model,year,mileage,price);
//save it to the list
carsList.add(car);
//optional: display a messagebox
JOptionPane.showMessageDialog(null,
"car data has been save to the list");
}
});
//Jan. 14, 2016
jbtnDisplayListOfCars.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
for (Car car: carsList){
DefaultTableModel dmodel = (DefaultTableModel)jTable1.getModel();
//add new row to the table
dmodel.addRow(new Object [] {car.getMake(), car.getModel(), car.getYear(), car.getMileage(), car.getPrice()});
}
}
});
jbtnGetSelectedRow.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent ae) {
//get the index of the selected row
int sindex = jTable1.getSelectedRow();
//you can findout the number of rows
int numOfRow = jTable1.getRowCount();
//you can find out the cell values of any row, or the selected row
DefaultTableModel dmodel = (DefaultTableModel)jTable1.getModel();
//get the first value of the selected row
String make = (String)dmodel.getValueAt(sindex, 0);
//get the second value....
String model = (String)dmodel.getValueAt(sindex, 1);
//get the third value
int year = (int)dmodel.getValueAt(sindex, 2);
//get the fourth value "price"
double price = (double)dmodel.getValueAt(sindex, 4);
NumberFormat formatter = NumberFormat.getCurrencyInstance(Locale.US);
JOptionPane.showMessageDialog(null, "car make: " + make + "\n" +
"car model: " + model + "\n" +
"car year: " + year + "\n" +
"car price: " + formatter.format(price));
}
});
}
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Java
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