Some one should run this code and see what i want to imply.
I want to use the check box to select the kind of units to put in can some one
help ne?
this is just one panel of a tabbed aplicaion appliction.I will use three tabs
I also want to change the font of the load label and area label.
my main problem is how to use the checkbox to select the units.
I hane already read and gonr through the checkboxdemo but i still need help
import java.awt.event.*;
import javax.swing.*;
import java.awt.*;
import javax.swing.BorderFactory;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;
import java.text.ParseException;
import javax.swing.JOptionPane;
public class Stresses implements ActionListener {
JPanel axialMainpanel;
JPanel torsionMainpanel;
JPanel shearMainpanel;
JPanel choicepanel = new JPanel();
Border blueline = BorderFactory.createLineBorder(Color.blue);
ImageIcon icon0;
ImageIcon icon1;
ButtonGroup group;
JLabel previewLabel;
JTextField loadInput;
JTextField areaInput;
JLabel result;
String errorMessage = " Enter decimal numbers";
String [] units = {"Imperial","Metric"};
JComboBox unit;
JLabel unitLabel;
public JPanel createaxialPanel(JPanel axialMainpanel){
this.axialMainpanel = axialMainpanel;
//creation of the choice panel
JPanel choicepanel1 = new JPanel();
choicepanel1.setLayout(new BoxLayout(choicepanel1, BoxLayout.Y_AXIS));
TitledBorder tb = BorderFactory.createTitledBorder(blueline, "Types");
tb.setTitleJustification(TitledBorder.CENTER);
tb.setTitlePosition(TitledBorder.DEFAULT_POSITION);
choicepanel1.setBorder(tb);
JRadioButton tension = new JRadioButton("Tension");
tension.setMnemonic(KeyEvent.VK_T);
tension.setSelected(true);
tension.addActionListener(this);
JRadioButton compression = new JRadioButton("Compression");
compression.setMnemonic(KeyEvent.VK_C);
compression.addActionListener(this);
group = new ButtonGroup();
group.add(tension);
group.add(compression);
choicepanel1.add(compression);
choicepanel1.add(tension);
//creatiom of the calc panel
unitLabel = new JLabel("Units");
unit = new JComboBox(units);
unit.setSelectedIndex(0);
unit.addActionListener(this);
unitLabel.setLabelFor(unit);
JPanel calc = new JPanel();
calc.setLayout(new GridLayout(5,1,30,30));
JLabel load = new JLabel("<html><b><font size = 20,face
=HELVATICA,Color=blue>FORCE</font></b></html>");
loadInput = new JTextField("0");
load.setLabelFor(loadInput);
JLabel area = new JLabel("<html><b><font size = 20,face
=HELVATICA,Color=blue>AREA :</font></b></html>");
areaInput = new JTextField("3");
area.setLabelFor(areaInput);
result = new JLabel("0 ");
result.setBorder(blueline);
JButton answer = new JButton("CALCULATE");
answer.setMnemonic(KeyEvent.VK_A);
answer.addActionListener(this);
calc.add(load);
calc.add(loadInput);
calc.add(area);
calc.add(areaInput);
calc.add(answer);
calc.add(result);
calc.add(unit);
calc.add(unitLabel);
//creation of picturelabel
JPanel picpan = new JPanel();
TitledBorder tp = BorderFactory.createTitledBorder(blueline, "Preview");
tp.setTitleJustification(TitledBorder.CENTER);
tp.setTitlePosition(TitledBorder.DEFAULT_POSITION);
picpan.setBorder(tp);
previewLabel = new JLabel();
icon0 = createImageIcon("AxialStress0.jpg");
icon1 = createImageIcon("AxialStress1.jpg");
previewLabel.setIcon(icon0);
picpan.add(previewLabel);
axialMainpanel = new JPanel(new BorderLayout(30, 30));
axialMainpanel.setBorder(BorderFactory.createEmptyBorder());
axialMainpanel.add(choicepanel1,BorderLayout.WEST);
axialMainpanel.add(calc,BorderLayout.CENTER);
axialMainpanel.add(picpan,BorderLayout.EAST);
return axialMainpanel;
}
//actions perfomed
public void actionPerformed(ActionEvent ev){
if ( ev.getActionCommand()=="Tension"){
previewLabel.setIcon(icon0);
}else
if(ev.getActionCommand()=="Compression"){previewLabel.setIcon(icon1);
}
//this is where i have the problem
String UN = "N/m^2";
String UNi="Psi";
float calcVal =0.0f;
double loadValue=0;
double areaValue=0;
try{
loadValue = Double.parseDouble(loadInput.getText());
areaValue = Double.parseDouble(areaInput.getText());
calcVal =(float)(loadValue/areaValue);
if (ev.getActionCommand()=="CALCULATE"){
result.setText("<html><font Color=blue>" +
calcVal+" " +UN+ "</font></html>" );
}
}
catch(NumberFormatException
e){JOptionPane.showMessageDialog(null, errorMessage);
}
JComboBox cb = (JComboBox)ev.getSource();
String newSelection = (String)cb.getSelectedItem();
if(cb.getActionCommand()==newSelection){
UN="N/m^2";
}else{UN =UNi;
}
}
protected static ImageIcon createImageIcon(String path) {
java.net.URL imgURL = Stresses.class.getResource(path);
if (imgURL != null) {
return new ImageIcon(imgURL);
} else {
System.err.println("Couldn't find file: " + path);
return null;
}
}
//Creatting the main GUI
private void createAndShowGUI() {
JFrame.setDefaultLookAndFeelDecorated(true);
MyLookAndFeel lk = new MyLookAndFeel();
//Create and set up the window.
JFrame frame = new JFrame("ENGINEERS SOLUTION-Stress/strain_V1.0.1");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Stresses stress = new Stresses();
JPanel AxialPane = stress.createaxialPanel(axialMainpanel);
JTabbedPane tabs = new JTabbedPane();
tabs.addTab("Axial stress",AxialPane);
frame.add(tabs);
frame.setMinimumSize(new Dimension (850,400));
frame.setVisible(true);
}
public static void main(String[] args) {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
public void run() {
Stresses stress = new Stresses();
stress.createAndShowGUI();
}
});
}
}
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