Develop Reference

Trying to Update Values of JThermometer and JSliders Dynamically in a for loop

I am new in java and trying to create a dashboard where I have N number of sensors and now i wants to show values of Humidity and temperature of each sensor in a separate panels . So firstly i have created N number of panels containing a JSlider and JThermometer for Humidity and temperature each. Now in a loop it reads the lines of outputs from arduino and i am trying to provide that values to that thermometers and sliders .
But i am not able to differentiate that output for which panel it is goin to set . even when i tried to set values to them it is not working at all.
Kindly give any idea how can i implement.
Thank you for help.
Java version - 18.0.1.1
IDE - Apache netbeans 14
static JTextField txtTemp, txtMois;
static JLabel lblTemp, lblMois;
static JSlider slider1, slider2;
static JThermometer th1, th2 ;
static JPanel JP1, JP ;
public void interfaces(){
///Here number of panels is 2
if(count1 > 0){
for(int i = 0 ; i<=count1 ; i++){
JP1 = myPanel(i,0,0);
add(JP1);
}
}
setVisible(true);
setTitle("Temperature and Humidity");
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
setSize(1200,800);
getContentPane().setBackground(Color.lightGray);
setMinimumSize(new Dimension(350,450));
setLayout(null);
SerialPort[] AvailablePorts = SerialPort.getCommPorts();
SerialPort currPort = AvailablePorts[0];
for (SerialPort S : AvailablePorts) {
System.out.println("\n " + S.toString());
currPort = S;
}
int BaudRate = 9600;
int DataBits = 8;
int StopBits = SerialPort.ONE_STOP_BIT;
int Parity = SerialPort.NO_PARITY;
System.out.println("\n " + currPort.getSystemPortName());
currPort.setComPortParameters(BaudRate,
DataBits,
StopBits,
Parity);
currPort.setComPortTimeouts(SerialPort.TIMEOUT_READ_BLOCKING,
1000,
0);
currPort.openPort();
if (currPort.isOpen())
{
System.out.println("is Open ");
} else {
System.out.println(" Port not open ");
}
try {
while (true) {
try{input = new BufferedReader(new InputStreamReader(currPort.getInputStream()));
String Line1 = input.readLine();
int count = 0;
String[] Data = Line1.split(" ");
for(int i = 0; i < Data.length; i++){
count +=1;
String[] Final_data = Data[i].split(",");
double temp, mois;
try{ temp = Double.parseDouble(Final_data[0]);
mois = Double.parseDouble(Final_data[1]);
System.out.println("Temparature : " + temp);
System.out.println("Humidity : " + mois);
th1.setValue(temp);
th2.setValue(mois);
slider1.setValue((int) temp);
slider2.setValue((int) mois);
txtTemp.setText(String.valueOf(temp));
txtMois.setText(String.valueOf(mois));
}
catch(NumberFormatException e){
System.out.println(e.toString());
}
}
}
catch(SerialPortTimeoutException ex){
System.out.println(ex);
}
}
} catch (Exception e) {
e.printStackTrace();
}
currPort.closePort();
}
//MyPannel funaction
public static JPanel myPanel(int count, double temp, double mois){
JP = new JPanel();
int width = (count-1)*420;
test = new JTextField(String.valueOf(count));
test.setBounds(0, 0, 200, 20);
JP.add(test);
th1 = new JThermometer();
th1.setBounds(10, 50, 150,300);
th1.setValue(0);
th1.setBackground(new Color(0,0,0,0));
th1.setForeground(Color.white);
String color = th1.getBackground().toString();
slider1 = new JSlider(JSlider.VERTICAL,0,100,0);
slider1.setBounds(110, 60, 50, 230);
slider1.setMinorTickSpacing(2);
slider1.setMajorTickSpacing(10);
slider1.setPaintTicks(true);
slider1.setPaintLabels(true);
slider1.setForeground(Color.white);
slider1.setBackground(new Color(0,0,0,0));
lblTemp = new JLabel("TEMPERATURE",SwingConstants.CENTER);
lblTemp.setBounds(15,30,140,30);
lblTemp.setForeground(Color.WHITE);
lblTemp.setFont(new Font("Arial", Font.BOLD, 20));
lblTemp.setBackground(Color.getColor(color));
txtTemp = new JTextField();
txtTemp.setFont(new Font("Arial", Font.BOLD, 16));
txtTemp.setBounds(115,300,50,30);
th2 = new JThermometer();
th2.setBounds(210, 50, 150, 300);
th2.setValue(0);
th2.setBackground(new Color(0,0,0,0));
th2.setForeground(Color.white);
slider2 = new JSlider(JSlider.VERTICAL,0,100,0);
slider2.setBounds(310, 60, 50, 230);
slider2.setMinorTickSpacing(2);
slider2.setMajorTickSpacing(10);
slider2.setPaintTicks(true);
slider2.setPaintLabels(true);
slider2.setBackground(new Color(0,0,0,0));
slider2.setForeground(Color.white);
lblMois = new JLabel("HUMIDITY",SwingConstants.CENTER);
lblMois.setBounds(215,30,140,30);
lblMois.setFont(new Font("Arial", Font.BOLD, 20));
lblMois.setForeground(Color.WHITE);
txtMois = new JTextField();
txtMois.setFont(new Font("Arial", Font.BOLD, 16));
txtMois.setBounds(315,300,50,30);
JP.add(lblTemp);
JP.add(txtTemp);
JP.add(lblMois);
JP.add(txtMois);
JP.add(th1,BorderLayout.CENTER);
JP.add(slider1);
JP.add(slider2);
JP.add(th2,BorderLayout.CENTER);
JP.setBounds(width, 20, 400, 400);
JP.setVisible(true);
JP.setLayout(new java.awt.BorderLayout());
JP.validate();
//JP.add(txt);
return JP;
}
//and arduino output will be like this..
29.5,56.9 25.5,40.3
29.5,54,8 25.5,40.0
so on...

Can you add an image to a GUI using the picture's URL?

I am currently creating a database that uses information from IMDB and Rotten Tomatoes. In the printout of the data (in a GUI Frame), I have to list the URL to the poster image of the movie.
My question is this: Instead of printing the image URL, is there a way to use the URL to show the image WITHOUT having the image stored locally?
Here's the code I have to display the data retrieved from mySQL (It works, I just want the URL to show as an image instead of the link):
public void mouseClicked(MouseEvent e) {
JFrame frame3 = new JFrame("Query 1: Top Movies");
frame3.setBackground(Color.BLACK);
frame3.setSize(new Dimension(1500,1500));
frame3.setVisible(true);
frame3.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
System.out.println("frame created");
try {
loadConnection();
//create query
System.out.println("Connection loaded...");
String sql = "SELECT M.TITLE,M.YEAR,M.RTAUDIENCESCORE,M.IMDBPICTUREURL FROM MOVIES AS M ORDER BY RTAUDIENCESCORE DESC,TITLE LIMIT 10";
//prepares statement for execution
java.sql.PreparedStatement ps = con.prepareStatement(sql);
ResultSet rs = ps.executeQuery();
System.out.println("Query Successful!");
//create labels for output
JLabel l1, l2, l3, l4;
JTextField title, year, RTscore, IMDBURL;
//labels
l1 = new JLabel("Title");
l2 = new JLabel("Year");
l3 = new JLabel("RT Audience Score");
l4 = new JLabel("IMDB Picture URL");
l1.setBounds(20, 20, 150, 20);
l2.setBounds(200, 20, 150, 20);
l3.setBounds(380, 20, 150, 20);
l4.setBounds(560, 20, 150, 20);
frame3.add(l1);
frame3.add(l2);
frame3.add(l3);
frame3.add(l4);
System.out.println("Frames added...");
int y = 50;
while (rs.next()) {
//Text fields
title = new JTextField();
year = new JTextField();
RTscore = new JTextField();
IMDBURL = new JTextField();
title.setText(rs.getString(1));
year.setText(rs.getString(2));
RTscore.setText(rs.getString(3));
IMDBURL.setText(rs.getString(4));
title.setBounds(20, y, 150, 20);
year.setBounds(200, y, 150, 20);
RTscore.setBounds(380, y, 150, 20);
IMDBURL.setBounds(560, y, 150, 20);
y+=30;
frame3.add(title);
frame3.add(year);
frame3.add(RTscore);
frame3.add(IMDBURL);
}

JLabel jLabelObject = new JLabel();
jLabelObject.setIcon(new ImageIcon(IMDBURL))
In your case you will have edit your while loop and add new label which will represent image.
frame3.add(title);
frame3.add(year);
frame2.add(RTscore);
frame3.add(jLabelObject);

insert data into database(mongodb)

I have used the following code to insert data into the mongodb database.....the problem with this i have to explicitly specify the data to be entered but however I need to do it dynamically...in the sense using a GUI, whatever has been entered int the text box must be put into the database.
private void initialize() {
frame = new JFrame();
frame.setBounds(100, 100, 512, 355);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().setLayout(null);
JLabel lblNewLabel = new JLabel("Name");
lblNewLabel.setBounds(42, 33, 95, 30);
frame.getContentPane().add(lblNewLabel);
JLabel lblNewLabel_1 = new JLabel("Manufacturer");
lblNewLabel_1.setBounds(42, 74, 80, 30);
frame.getContentPane().add(lblNewLabel_1);
textField = new JTextField();
textField.setBounds(147, 33, 122, 25);
frame.getContentPane().add(textField);
textField.setColumns(10);
textField_1 = new JTextField();
textField_1.setBounds(147, 79, 122, 25);
frame.getContentPane().add(textField_1);
textField_1.setColumns(10);
JButton btnInsert = new JButton("Insert");
btnInsert.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
MongoClient mongoClient = null;
DBCursor cursor = null;
try {
mongoClient = new MongoClient( "localhost" , 27017 );
DB db = mongoClient.getDB( "sample" );
DBCollection coll = db.getCollection("sample");
BasicDBObject doc = new BasicDBObject("title", "MongoDB").
append("name","a" ).
append("manufacturer", "b").
append("colour", "c").
append("price", "d");
coll.insert(doc);
}catch(Exception e){
System.err.println( e.getClass().getName() + ": " + e.getMessage() );}
}
});
btnInsert.setBounds(148, 223, 89, 23);
frame.getContentPane().add(btnInsert);
JLabel lblNewLabel_2 = new JLabel("Colour");
lblNewLabel_2.setBounds(42, 127, 65, 25);
frame.getContentPane().add(lblNewLabel_2);
textField_2 = new JTextField();
textField_2.setBounds(147, 129, 122, 25);
frame.getContentPane().add(textField_2);
textField_2.setColumns(10);
JLabel lblNewLabel_3 = new JLabel("Price");
lblNewLabel_3.setBounds(37, 175, 70, 25);
frame.getContentPane().add(lblNewLabel_3);
textField_3 = new JTextField();
textField_3.setBounds(147, 177, 122, 25);
frame.getContentPane().add(textField_3);
textField_3.setColumns(10);
}
}

"i have a front end which has 4 text boxes saying "name","manufacturer","colour" and "price"....so whatever i enter in the text box should be put into the database....however in the above code insertion can be done only by explicitly specifying the values....so i need to change this for a generlized method"
Just change it to something like:
String name = nameField.getText();
String manufacturer = manufacturerField.getText();
String color = colorField.getText();
String price = priceField.getText();
BasicDBObject doc = new BasicDBObject("title", "MongoDB").
append("name", name ).
append("manufacturer", manufacturer).
append("colour", color).
append("price", price);
coll.insert(doc);
Is that what you're looking for?

How to create JCheckBox that changes the text in JLabel

How can I declare JCheckBox so that when it's checked it will change the JLabel text to uppercase?
I've been trying many things yet nothing works
public void itemStateChanged(ItemEvent e) {
Font f = null;
if(Bold.isSelected() && Italic.isSelected())
f = new Font("Serif", Font.BOLD + Font.ITALIC, 14);
else if(Bold.isSelected())
f = new Font("Serif", Font.BOLD, 14);
else if(Italic.isSelected())
f = new Font("Serif", Font.ITALIC, 14);
if(Capitalized.isSelected()){
}
label3.setFont(f);
}
What should put inside if(Capitalized.isSelected())?

Have you tried getting the text, then calling toUpperCase() on it:
label3.setText(label3.getText().toUpperCase());

Automatic entry in text field

I have this GUI:
I would like after I enter a number in the Length of hot tub text box for that number to be automatically entered into the Width of hot tub text box, but only if the Round Tub radio button is selected.
public void createHotTubs()
{
hotTubs = new JPanel();
hotTubs.setLayout(null);
labelTubStatus = new JTextArea(6, 30);
hotTubs.add(labelTubStatus);
JLabel lengthLabel = new JLabel(
"Length of hot tub(ft):");
lengthLabel.setBounds(10, 15, 260, 20);
hotTubs.add(lengthLabel);
hotTubLengthText = new JTextField();
hotTubLengthText.setBounds(180, 15, 150, 20);
hotTubs.add(hotTubLengthText);
JLabel widthLabel = new JLabel(
"Width of hot tub(ft):");
widthLabel.setBounds(10, 40, 260, 20);
hotTubs.add(widthLabel);
hotTubWidthText = new JTextField();
hotTubWidthText.setBounds(180, 40, 150, 20);
hotTubs.add(hotTubWidthText);
JLabel depthLabel = new JLabel(
"Average depth the hot tub(ft):");
depthLabel.setBounds(10, 65, 260, 20);
hotTubs.add(depthLabel);
hotTubDepthText = new JTextField();
hotTubDepthText.setBounds(180, 65, 150, 20);
hotTubs.add(hotTubDepthText);
JLabel volumeLabel = new JLabel("The hot tub volume is:(ft ^3");
volumeLabel.setBounds(10, 110, 260, 20);
hotTubs.add(volumeLabel);
hotTubVolumeText = new JTextField();
hotTubVolumeText.setBounds(180, 110, 150, 20);
hotTubVolumeText.setEditable(false);
hotTubs.add(hotTubVolumeText);
final JRadioButton rdbtnRoundTub = new JRadioButton("Round Tub");
rdbtnRoundTub.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent arg0)
{
hotTubWidthText.setEditable(false);
}
});
rdbtnRoundTub.setSelected(true);
rdbtnRoundTub.setBounds(79, 150, 109, 23);
hotTubs.add(rdbtnRoundTub);
JRadioButton rdbtnOvalTub = new JRadioButton("Oval Tub");
rdbtnOvalTub.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent arg0)
{
hotTubWidthText.setEditable(true);
}
});
rdbtnOvalTub.setBounds(201, 150, 109, 23);
hotTubs.add(rdbtnOvalTub);
ButtonGroup radioBtnGroup = new ButtonGroup();
radioBtnGroup.add(rdbtnRoundTub);
radioBtnGroup.add(rdbtnOvalTub);
JButton btnCalculateVlmn = new JButton("Calculate Volume");
btnCalculateVlmn.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent arg0)
{
double width = 0, length = 0, depth = 0, volume = 0;
String lengthString, widthString, depthString;
lengthString = hotTubLengthText.getText();
widthString = hotTubWidthText.getText();
depthString = hotTubDepthText.getText();
depth = Double.valueOf(depthString);
length = Double.valueOf(lengthString);
width = Double.valueOf(widthString);
try
{
if (rdbtnRoundTub.isSelected())
{
volume = length * width * depth;
}
else
{
volume = Math.PI * length * width / 4 * depth;
}
DecimalFormat formatter = new DecimalFormat("#,###,###.###");
hotTubVolumeText.setText("" + formatter.format(volume));
}
catch (NumberFormatException e)
{
labelTubStatus
.setText("Enter all three numbers!!");
}
}
});

Add a focus listener to your length text field when it loses focus and the round tub is selected, compute and set the the width.