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...

Text area exceeds the window area

I have wrote program in java the program is to convert from KM to miles and miles to KM the program works fine but the problem is in the result in text area exceeded the area so does not appear the full text below the code attached. so i want if it is reached at the end of line it goes to new line
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Converter extends JFrame implements ActionListener {
JLabel label = new JLabel("Distance : ");
JTextField input = new JTextField(10);
JButton button = new JButton("Convert");
JTextArea output = new JTextArea(10,15);
CheckboxGroup cbg = new CheckboxGroup();
Checkbox cb1 = new Checkbox("Convert MILES to KM", cbg, true);
Checkbox cb2 = new Checkbox("Convert KM to MILES", cbg, false);
public static void main(String args[]) {
Converter s = new Converter();
s.setVisible(true);
}
public Converter() {
setLayout(null);
setSize(300,400);
//left-down-width-hegiht
cb1.setBounds(60,30,150,30);
cb2.setBounds(60,60,150,30);
label.setBounds(30,90,120,30);
input.setBounds(90,95,170,20);
button.setBounds(100,130,90,30);
output.setBounds(45,168,200,165);
add(cb1);
add(cb2);
add(label);
add(input);
add(button);
add(output);
button.addActionListener(this);
}
public void actionPerformed(ActionEvent e) {
if (cb1.getState() ) {
if (e.getSource() == button) {
double d = Double.parseDouble(input.getText());
double d2 = d / 0.62;
String str2 = String.valueOf(d2);
output.setText(d + "miles equals to " + str2 + " kilometers");
}
}
if (cb2.getState()) {
if (e.getSource() == button){
double d = Double.parseDouble(input.getText());
double d2 = d * 0.62;
String str2 = String.valueOf(d2);
output.setText(d + " kilometers equals to " + str2 + " miles ");
}
}
}
}

If your goal is purely to have line wrapping on in the text area then you can make use of JTextArea's built-in function named setLineWrap.
Passing a true boolean value as a parameter to setLineWrap such as setLineWrap(true) will turn on line wrapping for the JTextArea component. Passing a false boolean value as a parameter will turn off line wrapping
In your code, it would be used as follows.
output.setLineWrap(true);
The Converter constructor will then look as follows.
public Converter() {
// Turn on line wrapping.
output.setLineWrap(true);
setLayout(null);
setSize(300, 400);
// left-down-width-hegiht
cb1.setBounds(60, 30, 150, 30);
cb2.setBounds(60, 60, 150, 30);
label.setBounds(30, 90, 120, 30);
input.setBounds(90, 95, 170, 20);
button.setBounds(100, 130, 90, 30);
output.setBounds(45, 168, 200, 165);
add(cb1);
add(cb2);
add(label);
add(input);
add(button);
add(output);
button.addActionListener(this);
}

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);

Split string into List<String> if too long

I have this string: "This is my very long String that wont fit on one line"
And I need to split it into multiple lines so it'll fit where I need it.
Lets say theres only room for about 15 letters per line, then it should look like this:
"This is my very"
"long String"
"that wont fit"
"on one line"
I would like to split it into a List<String> so I can do
for(String s : lines) draw(s,x,y);
Any help on how to do this would be appriciated!
The way I'm rendering the text is with Graphics.drawString()
This is what I've tried so far (horrible, I know)
String diaText = "This is my very long String that wont fit on one line";
String[] txt = diaText.trim().split(" ");
int max = 23;
List<String> lines = new ArrayList<String>();
String s1 = "";
if (!(diaText.length() > max)) {
lines.add(diaText);
} else {
for (int i = 0; i < txt.length; i++) {
String ns = s1 += txt[i] + " ";
if (ns.length() < 23) {
lines.add(s1);
s1 = "";
} else {
s1 += txt[i] + "";
}
}
}
int yo = 0;
for (String s : lines) {
Font.draw(s, screen, 70, 15 + yo, Color.get(-1, 555, 555,555));
yo += 10;
}

import java.awt.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
public class LabelRenderTest {
public static void main(String[] args) {
SwingUtilities.invokeLater( new Runnable() {
public void run() {
String title = "<html><body style='width: 200px; padding: 5px;'>"
+ "<h1>Do U C Me?</h1>"
+ "Here is a long string that will wrap. "
+ "The effect we want is a multi-line label.";
JFrame f = new JFrame("Label Render Test");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
BufferedImage image = new BufferedImage(
400,
300,
BufferedImage.TYPE_INT_RGB);
Graphics2D imageGraphics = image.createGraphics();
GradientPaint gp = new GradientPaint(
20f,
20f,
Color.red,
380f,
280f,
Color.orange);
imageGraphics.setPaint(gp);
imageGraphics.fillRect(0, 0, 400, 300);
JLabel textLabel = new JLabel(title);
textLabel.setSize(textLabel.getPreferredSize());
Dimension d = textLabel.getPreferredSize();
BufferedImage bi = new BufferedImage(
d.width,
d.height,
BufferedImage.TYPE_INT_ARGB);
Graphics g = bi.createGraphics();
g.setColor(new Color(255, 255, 255, 128));
g.fillRoundRect(
0,
0,
bi.getWidth(f),
bi.getHeight(f),
15,
10);
g.setColor(Color.black);
textLabel.paint(g);
Graphics g2 = image.getGraphics();
g2.drawImage(bi, 20, 20, f);
ImageIcon ii = new ImageIcon(image);
JLabel imageLabel = new JLabel(ii);
f.getContentPane().add(imageLabel);
f.pack();
f.setLocationByPlatform(true);
f.setVisible(true);
}
});
}
}

You could consider using LineBreakMeasurer which is intended for this sort of thing in a graphics environment. Please check out the JavaDocs here, which contain a couple of detailed examples on how to use it.

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.