Java Utililty Methods JTextField

List of utility methods to do JTextField

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Description

The list of methods to do JTextField are organized into topic(s).

Method

booleanisActiveComponents(JTextField... textFields)
is Active Components 
for (JTextField textField : textFields)
    if (textField.isEnabled())
        return textField.isEnabled();
return false;
booleanisEmptyStr(javax.swing.JTextField input)
Check if the JTextField input is empty 
return "".equals(input.getText().trim());
booleanisInHighlight(MouseEvent e, JTextField label, Highlighter h)
Returns true if the given mouse event occurred within a highlight h on label. 
Highlight[] hls = h.getHighlights();
if (hls == null || hls.length == 0)
    return false;
Highlight hl = hls[0];
FontMetrics fm = label.getFontMetrics(label.getFont());
int offset = getCharOffset(fm, label.getText(), e.getX());
return hl.getStartOffset() <= offset && offset < hl.getEndOffset();
booleanisJTextFieldNotEmpty(javax.swing.JTextField field)
is J Text Field Not Empty 
return !(field.getText().trim().isEmpty());
booleanisTelpValid(JTextField field)
is Telp Valid 
boolean valid;
String inputTelp = field.getText();
String exp = "(^0[1-9]).{9,}";
Pattern p = Pattern.compile(exp);
Matcher m = p.matcher(inputTelp);
if (m.matches()) {
    return valid = true;
} else {
...
booleanIsTextFieldEmpty(javax.swing.JTextField tf)
Is Text Field Empty 
return (tf.getText().length() == 0);
booleanisTextFieldModified(JTextField textField, String originalValue)
is Text Field Modified 
return (textField.getText() != null ? !textField.getText().equals(originalValue) : originalValue != null);
intnewIntegerValue(JTextField text, int oldValue)
Bepaal de nieuwe integer waarde voor een textfield Als het tekstveld een geldig getal bevat, wordt deze waarde geretourneerd anders de oude waarde 
int value;
try {
    value = Integer.parseInt(text.getText());
} catch (Exception e) {
    value = oldValue;
text.setText(Integer.toString(value));
return value;
...
voidonTextFieldChange(JTextField field, final Runnable task)
on Text Field Change 
field.getDocument().addDocumentListener(new DocumentListener() {
    @Override
    public void insertUpdate(DocumentEvent e) {
        task.run();
    @Override
    public void removeUpdate(DocumentEvent e) {
        task.run();
...
intparseTextFieldInteger(JTextField field)
Returns the integer value of a JTextField. 
String fText = field.getText();
if (fText.length() == 0) {
    return 0;
} else {
    try {
        return Integer.parseInt(fText);
    } catch (NumberFormatException e) {
        return 0;
...