/**
* actionPerformed() handles clicks on the button. It takes the data from the input JTextFields,
* and sends them to the GradeCalculater class to calculate a running average and computes the
* letter grade, which are displayed in TextFields.
*
* @param e -- the ActionEvent the generated this system call
*/
public void actionPerformed(ActionEvent e) {
double count, grade = 0, ave;
DecimalFormat df = new DecimalFormat("0.00");
String inputString = inputField.getText();
// HINT: use try/catch blocks to catch bad input to parseDouble()
// Type mismatch
// check for range too
boolean error = true;
try {
grade = Double.parseDouble(inputString);
error = false;
} catch (Exception e1) {
System.out.println("input a number");
}
// HINT: reject a bad grade in some way (the modified addGrade will return false
// there is a problem with the grade
// HINT: output grade count along with average and letter grade
if (error == false) {
inputField.setText("");
calculator.addGrade(grade);
ave = calculator.calcAvg();
count = calculator.getCount();
String average = "" + df.format(ave);
String letterGrade = calculator.calcLetterGrade();
resultField.setText(average + " " + letterGrade + " " + count);
}
} // actionPeformed()
/**
* Adds an editable text field containing the hours spent on a project.
*
* @param gbl The layout to add the text field to.
* @param gbc The layout constraints to use.
* @param row The row to link against.
* @param hours The number of hours spent on the project.
* @see {@link #addRow(GridBagLayout, GridBagConstraints, String, double)}
*/
private void addMiddleField(GridBagLayout gbl, GridBagConstraints gbc, Row row, double hours) {
row.hoursTF.setText(decimalFormat.format(hours));
gbc.gridx = 1;
gbc.weightx = 1;
gbl.setConstraints(row.hoursTF, gbc);
gbc.weightx = 0;
reviewPanel.add(row.hoursTF);
}
// int frame = 0;
public void paint(Graphics g) {
// System.out.println("frame: " + (frame++));
lStatus.setText(
"t = "
+ df.format(md.dt * md.step)
+ ", "
+ "N = "
+ md.N
+ ", "
+ "E/N = "
+ df.format(md.E / md.N)
+ ", "
+ "U/N = "
+ df.format(md.U / md.N)
+ ", "
+ "K/N = "
+ df.format(md.K / md.N)
+ ", "
+ "p = "
+ df.format(md.p)
+ ";");
tAvK.setText(df.format(md.avK.getAve() / md.N) + " ");
tAvU.setText(df.format(md.avU.getAve() / md.N) + " ");
tTemp.setText(df.format((2 * md.K) / (3 * (md.N - 1))) + " ");
tAvp.setText(df.format(md.avp.getAve()) + " ");
canvas.refresh(md.getXWrap(), md.N, true, false);
cpnl.repaint();
spnl.repaint();
try {
PrintWriter wavefunc =
new PrintWriter(new FileOutputStream(new File("energyData.txt"), true));
wavefunc.print(md.E / md.N + " " + md.K / md.N + " " + md.U / md.N);
wavefunc.println();
wavefunc.close();
} catch (IOException ex) {
}
try {
PrintWriter tempwriter =
new PrintWriter(new FileOutputStream(new File("tempData.txt"), true));
tempwriter.print(df.format((2 * md.K) / (3 * (md.N - 1))));
tempwriter.println();
tempwriter.close();
} catch (IOException ex) {
}
}
// calculate and display amounts
private void calculateJButtonActionPerformed(ActionEvent event) {
resultJTextArea.setText("Rate (%)\tAmount after 10 years");
DecimalFormat dollars = new DecimalFormat("$0.00");
int principal = Integer.parseInt(principalJTextField.getText());
// for loop to calculate interest
for (int rate = 5; rate <= 10; rate++) {
double amount = (double) principal * Math.pow(1 + ((double) rate / 100), 10);
resultJTextArea.append("\n" + rate + "\t" + dollars.format(amount));
} // end for
} // end method calculateJButtonActionPerformed
/**
* This function re-computes the total number of hours for the selected period. It is ran every
* time the user edits a text field specifying the number of hours for a particular top-level
* project. Percentage labels are also updated.
*/
private void recomputeTotal() {
double total = 0;
for (Row row : rows.values()) {
try {
row.hours = Double.parseDouble(row.hoursTF.getText());
total += row.hours;
row.hoursTF.setForeground(normalColour);
} catch (NumberFormatException e) {
row.hoursTF.setForeground(errorColour);
totalLabel.setText("ERROR");
totalLabel.setForeground(errorColour);
return;
}
}
totalLabel.setText(decimalFormat.format(total));
totalLabel.setForeground(normalColour);
for (Row row : rows.values()) {
String percentS = decimalFormat.format(total == 0 ? 0 : 100 * row.hours / total);
row.percentL.setText("(" + percentS + "%)");
}
pack();
}
private String generateOverviewText() throws InsufficientDataException {
StringBuilder sb = new StringBuilder();
final String team = config.getTeam();
double total = checkTotal();
final String nl = System.getProperty("line.separator");
for (Entry<String, Row> entry : rows.entrySet()) {
double hours = Double.parseDouble(entry.getValue().hoursTF.getText());
double fraction = hours / total;
if (fraction < 0.004) continue;
String line = team + ", " + decimalFormat.format(fraction) + ", " + entry.getKey();
sb.append(line + nl);
}
return sb.toString();
}
// calculate and display amounts
private void calculateJButtonActionPerformed(ActionEvent event) {
// declare variables to store user input
double principal = Double.parseDouble(principalJTextField.getText());
double rate = Double.parseDouble(interestRateJTextField.getText());
Integer integerObject = (Integer) yearsJSpinner.getValue();
Integer year = integerObject.intValue();
yearlyBalanceJTextArea.setText("Year\tAmount on Deposit");
DecimalFormat dollars = new DecimalFormat("$0.00");
// calculate the total value for each year
for (int count = 1; count <= year; count++) {
double amount = principal * Math.pow((1 + rate / 100), count);
yearlyBalanceJTextArea.append("\n" + count + "\t" + dollars.format(amount));
} // end for
} // end method calculateJButtonActionPerformed
/** convenience method for setting a double field */
public static void setFieldValue(JTextField field, double value) {
DecimalFormat formatter = new DecimalFormat("0.0##E0");
field.setText(formatter.format(value));
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D) g;
RenderingHints rh = g2d.getRenderingHints();
rh.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
rh.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
g2d.setRenderingHints(rh);
// Background.
D = this.getSize();
g.setColor(backgroundColor);
g.fillRect(0, 0, D.width, D.height);
Graphics2D g2 = (Graphics2D) g;
g2.setStroke(lineStroke);
// Axes, bounding box.
g.setColor(Color.gray);
g.drawLine(inset, D.height - inset, D.width - inset, D.height - inset);
g.drawLine(D.width - inset, inset, D.width - inset, D.height - inset);
g.drawLine(inset, inset, inset, D.height - inset);
g.drawLine(inset, inset, D.width - inset, inset);
double xDelta = (maxX - minX) / numIntervals;
// X-ticks and labels.
for (int i = 1; i <= numIntervals; i++) {
double xTickd = i * xDelta;
int xTick = (int) (xTickd / (maxX - minX) * (D.width - 2 * inset));
g.drawLine(inset + xTick, D.height - inset - 5, inset + xTick, D.height - inset + 5);
double x = minX + i * xDelta;
g.drawString(df.format(x), xTick + inset - 5, D.height - inset + 20);
}
// Y-ticks
double yDelta = (maxY - minY) / numIntervals;
for (int i = 0; i < numIntervals; i++) {
int yTick = (i + 1) * (int) ((D.height - 2 * inset) / (double) numIntervals);
g.drawLine(inset - 5, D.height - yTick - inset, inset + 5, D.height - yTick - inset);
double y = minY + (i + 1) * yDelta;
g.drawString(df.format(y), 1, D.height - yTick - inset);
}
// Zoom+move
Font savedFont = g.getFont();
g.setFont(plusFont);
g.drawString("+", D.width - 25, 20);
g.setFont(minusFont);
g.drawString("-", D.width - 25, 50);
drawArrow(g2d, D.width - 70, 20, D.width - 70, 0, 1.0f, lineStroke); // Up
drawArrow(g2d, D.width - 70, 30, D.width - 70, 50, 1.0f, lineStroke); // Down
drawArrow(g2d, D.width - 65, 25, D.width - 45, 25, 1.0f, lineStroke); // Right
drawArrow(g2d, D.width - 75, 25, D.width - 95, 25, 1.0f, lineStroke); // Left
g.setFont(savedFont);
// See if standard axes are in the middle.
g.setColor(Color.gray);
if ((minX < 0) && (maxX > 0) && (drawMiddleAxes)) {
// Draw y-axis
int x = (int) ((0 - minX) / (maxX - minX) * (D.width - 2 * inset));
g.drawLine(inset + x, D.height - inset, inset + x, inset);
}
if ((minY < 0) && (maxY > 0) && (drawMiddleAxes)) {
// Draw x-axis
int y = (int) ((0 - minY) / (maxY - minY) * (D.height - 2.0 * inset));
g.drawLine(inset, D.height - y - inset, D.width - inset, D.height - y - inset);
}
// Draw the objects.
drawObjects(g, points, lines, ovals, rectangles, images, labels, eqnLines);
if (animationMode) {
drawObjects(g, animPoints, animLines, animOvals, animRectangles, null, labels, eqnLines);
// No images in animation mode.
}
drawScribbles(g);
}
public static void writeTopValue(double v) {
writeTopString("" + df.format(v));
}
/**
* Mit dieser Methode wird der Wert des Feldes mittels eines Integers gesetzt.
*
* @param value DOCUMENT ME!
*/
public void setValue(final int value) {
setText(integerFormatter.format(value));
}