swing Using Swing for Graphical User Interfaces Setting Parameters for Components
Example
Components have various parameters that can be set for them. They vary from component to component, so a good way to see what parameters can be set for components is to start typing componentName.set, and let your IDE's autocomplete (If you use an IDE) suggest methods. The default shortcut in many IDEs, if it doesn't show up automatically, is CTRL + Space.
Common parameters that are shared between all components
| Description | Method |
|---|---|
| Sets the smallest size that the component can be (only if the layout manager honors the minimumSize property) | setMinimumSize(Dimension minimumSize) |
| Sets the biggest size that the component can be (only if the layout manager honors the maximumSize property) | setMaximumSize(Dimension maximumSize) |
| Sets the perferred size of the component (only if the layout manager honors the preferredSize property) | setPreferredSize(Dimension preferredSize) |
| Shows or hides the component | setVisible(boolean aFlag) |
| Sets whether the component should respond to user input | setEnabled(boolean enabled) |
| Sets the font of text | setFont(Font font) |
| Sets the text of the tooltip | setToolTipText(String text) |
| Sets the Backgroundcolor of the component | setBackground(Color bg) |
| Sets the Foregroundcolor (font color) of the component | setForeground(Color bg) |
Common parameters in other components
| Common Components | Description | Method |
|---|---|---|
JLabel, JButton, JCheckBox, JRadioButton, JToggleButton, JMenu, JMenuItem, JTextArea, JTextField | Sets the text displayed | setText(String text) |
JProgressBar, JScrollBar, JSlider, JSpinner | Set's a numerical value between the component's min and max values | setValue(int n) |
JProgressBar, JScrollBar, JSlider, JSpinner | Set's the smallest possible value that the value property can be | setMinimum(int n) |
JProgressBar, JScrollBar, JSlider, JSpinner | Set's the biggest possible value that the value property can be | setMaxmimum(int n) |
JCheckBox, JToggleBox | Set's whether the value is true or false (Eg: Should a checkbox be checked?) | setSelected(boolean b) |
