111         }
 112 
 113         @Override public void removeListener(ChangeListener<? super String> changeListener) {
 114             helper = ExpressionHelper.removeListener(helper, changeListener);
 115         }
 116 
 117         @Override public String getValue() {
 118             return get();
 119         }
 120 
 121         @Override public void addListener(InvalidationListener listener) {
 122             helper = ExpressionHelper.addListener(helper, this, listener);
 123         }
 124 
 125         @Override public void removeListener(InvalidationListener listener) {
 126             helper = ExpressionHelper.removeListener(helper, listener);
 127         }
 128     }
 129 
 130     /**
 131      * The default value for {@link #prefColumnCount}.
 132      */
 133     public static final int DEFAULT_PREF_COLUMN_COUNT = 12;
 134 
 135     /**
 136      * Creates a {@code TextField} with empty text content.
 137      */
 138     public TextField() {
 139         this("");
 140     }
 141 
 142     /**
 143      * Creates a {@code TextField} with initial text content.
 144      *
 145      * @param text A string for text content.
 146      */
 147     public TextField(String text) {
 148         super(new TextFieldContent());
 149         getStyleClass().add("text-field");
 150         setAccessibleRole(AccessibleRole.TEXT_FIELD);
 151         setText(text);

 111         }
 112 
 113         @Override public void removeListener(ChangeListener<? super String> changeListener) {
 114             helper = ExpressionHelper.removeListener(helper, changeListener);
 115         }
 116 
 117         @Override public String getValue() {
 118             return get();
 119         }
 120 
 121         @Override public void addListener(InvalidationListener listener) {
 122             helper = ExpressionHelper.addListener(helper, this, listener);
 123         }
 124 
 125         @Override public void removeListener(InvalidationListener listener) {
 126             helper = ExpressionHelper.removeListener(helper, listener);
 127         }
 128     }
 129 
 130     /**
 131      * The default value for {@link #prefColumnCountProperty() prefColumnCount}.
 132      */
 133     public static final int DEFAULT_PREF_COLUMN_COUNT = 12;
 134 
 135     /**
 136      * Creates a {@code TextField} with empty text content.
 137      */
 138     public TextField() {
 139         this("");
 140     }
 141 
 142     /**
 143      * Creates a {@code TextField} with initial text content.
 144      *
 145      * @param text A string for text content.
 146      */
 147     public TextField(String text) {
 148         super(new TextFieldContent());
 149         getStyleClass().add("text-field");
 150         setAccessibleRole(AccessibleRole.TEXT_FIELD);
 151         setText(text);