JOptionPane 類一個組件，它提供了標(biāo)準(zhǔn)的方法，彈出一個標(biāo)準(zhǔn)的對話框，或者通知用戶的東西。
以下是聲明 javax.swing.JOptionPane類：
public class JOptionPane extends JComponent implements Accessible
以下是javax.swing.JOptionPane類的字段：
static int CANCEL_OPTION --Return value from class method if CANCEL is chosen.
static int CLOSED_OPTION --Return value from class method if user closes window without selecting anything, more than likely this should be treated as either a CANCEL_OPTION or NO_OPTION.
static int DEFAULT_OPTION --Type meaning Look and Feel should not supply any options -- only use the options from the JOptionPane.
static int ERROR_MESSAGE --Used for error messages.
protected Icon icon --Icon used in pane.
static string ICON_PROPERTY --Bound property name for icon.
static int INFORMATION_MESSAGE --Used for information messages.
static string INITIAL_SELECTION_VALUE_PROPERTY --Bound property name for initialSelectionValue.
static string INITIAL_VALUE_PROPERTY --Bound property name for initialValue.
protected Object initialSelectionValue --Initial value to select in selectionValues.
protected Object initialValue --Value that should be initially selected in options.
static string INPUT_VALUE_PROPERTY --Bound property name for inputValue.
protected Object inputValue --Value the user has input.
protected Object message --Message to display.
static string MESSAGE_PROPERTY --Bound property name for message.
static string MESSAGE_TYPE_PROPERTY --Bound property name for type.
protected int messageType --Message type.
static int NO_OPTION --Return value from class method if NO is chosen.
static int OK_CANCEL_OPTION --Type used for showConfirmDialog.
static int OK_OPTION --Return value form class method if OK is chosen.
static string OPTION_TYPE_PROPERTY --Bound property name for optionType.
protected Object[] options --Options to display to the user.
static string OPTIONS_PROPERTY --Bound property name for option.
protected int optionType --Option type, one of DEFAULT_OPTION, YES_NO_OPTION, YES_NO_CANCEL_OPTION or OK_CANCEL_OPTION.
static int PLAIN_MESSAGE --No icon is used.
static int QUESTION_MESSAGE --Used for questions.
static string SELECTION_VALUES_PROPERTY --Bound property name for selectionValues.
protected Object[] selectionValues --Array of values the user can choose from.
static Object UNINITIALIZED_VALUE --Indicates that the user has not yet selected a value.
protected Object value --Currently selected value, will be a valid option, or UNINITIALIZED_VALUE or null.
static string VALUE_PROPERTY --Bound property name for value.
static string WANTS_INPUT_PROPERTY --Bound property name for wantsInput.
protected boolean wantsInput --If true, a UI widget will be provided to the user to get input.
static int WARNING_MESSAGE --Used for warning messages.
static int YES_NO_CANCEL_OPTION --Type used for showConfirmDialog.
static int YES_NO_OPTION --Type used for showConfirmDialog.
static int YES_OPTION --Return value from class method if YES is chosen.
| S.N. | 構(gòu)造函數(shù) & 描述 |
|---|---|
| 1 |
JOptionPane() Creates a JOptionPane with a test message. |
| 2 |
JOptionPane(Object message) Creates a instance of JOptionPane to display a message using the plain-message message type and the default options delivered by the UI. |
| 3 |
JOptionPane(Object message, int messageType) Creates an instance of JOptionPane to display a message with the specified message type and the default options |
| 4 |
JOptionPane(Object message, int messageType, int optionType) Creates an instance of JOptionPane to display a message with the specified message type and options. |
| 5 |
JOptionPane(Object message, int messageType, int optionType, Icon icon) Creates an instance of JOptionPane to display a message with the specified message type, options, and icon. |
| 6 |
JOptionPane(Object message, int messageType, int optionType, Icon icon, Object[] options) Creates an instance of JOptionPane to display a message with the specified message type, icon, and options. |
| 7 |
JOptionPane(Object message, int messageType, int optionType, Icon icon, Object[] options, Object initialValue) Creates an instance of JOptionPane to display a message with the specified message type, icon, and options, with the initially-selected option specified. |
| S.N. | 方法 & 描述 |
|---|---|
| 1 |
JDialog createDialog(Component parentComponent, String title) Creates and returns a new JDialog wrapping this centered on the parentComponent in the parentComponent's frame. |
| 2 |
JDialog createDialog(String title) Creates and returns a new parentless JDialog with the specified title. |
| 3 |
JInternalFrame createInternalFrame(Component parentComponent, String title) Creates and returns an instance of JInternalFrame. |
| 4 |
AccessibleContext getAccessibleContext() Returns the AccessibleContext associated with this JOptionPane. |
| 5 |
static JDesktopPane getDesktopPaneForComponent(Component parentComponent) Returns the specified component's desktop pane. |
| 6 |
static Frame getFrameForComponent(Component parentComponent) Returns the specified component's Frame. |
| 7 |
Icon getIcon() Returns the icon this pane displays. |
| 8 |
Object getInitialSelectionValue() Returns the input value that is displayed as initially selected to the user. |
| 9 |
Object getInitialValue() Returns the initial value. |
| 10 |
Object getInputValue() Returns the value the user has input, if wantsInput is true. |
| 11 |
int getMaxCharactersPerLineCount() Returns the maximum number of characters to place on a line in a message. |
| 12 |
Object getMessage() Returns the message-object this pane displays. |
| 13 |
int getMessageType() Returns the message type. |
| 14 |
Object[] getOptions() Returns the choices the user can make. |
| 15 |
int getOptionType() Returns the type of options that are displayed. |
| 16 |
static Frame getRootFrame() Returns the Frame to use for the class methods in which a frame is not provided. |
| 17 |
Object[] getSelectionValues() Returns the input selection values. |
| 18 |
OptionPaneUI getUI() Returns the UI object which implements the L&F for this component. |
| 19 |
String getUIClassID() Returns the name of the UI class that implements the L&F for this component. |
| 20 |
Object getValue() Returns the value the user has selected. |
| 21 |
boolean getWantsInput() Returns the value of the wantsInput property. |
| 22 |
protected String paramString() Returns a string representation of this JOptionPane. |
| 23 |
void selectInitialValue() Requests that the initial value be selected, which will set focus to the initial value. |
| 24 |
void setIcon(Icon newIcon) Sets the icon to display. |
| 25 |
void setInitialSelectionValue(Object newValue) Sets the input value that is initially displayed as selected to the user. |
| 26 |
void setInitialValue(Object newInitialValue) Sets the initial value that is to be enabled -- the Component that has the focus when the pane is initially displayed. |
| 27 |
void setInputValue(Object newValue) Sets the input value that was selected or input by the user. |
| 28 |
void setMessage(Object newMessage) Sets the option pane's message-object. |
| 29 |
void setMessageType(int newType) Sets the option pane's message type. |
| 30 |
void setOptions(Object[] newOptions) Sets the options this pane displays. |
| 31 |
void setOptionType(int newType) Sets the options to display. |
| 32 |
static voidsetRootFrame(Frame newRootFrame) Sets the frame to use for class methods in which a frame is not provided. |
| 33 |
void setSelectionValues(Object[] newValues) Sets the input selection values for a pane that provides the user with a list of items to choose from. |
| 34 |
void setUI(OptionPaneUI ui) Sets the UI object which implements the L&F for this component. |
| 35 |
void setValue(Object newValue) Sets the value the user has chosen. |
| 36 |
void setWantsInput(boolean newValue) Sets the wantsInput property. |
| 37 |
static int showConfirmDialog(Component parentComponent, Object message) Brings up a dialog with the options Yes, No and Cancel; with the title, Select an Option. |
| 38 |
static int showConfirmDialog(Component parentComponent, Object message, String title, int optionType) Brings up a dialog where the number of choices is determined by the optionType parameter. |
| 39 |
static int showConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType) Brings up a dialog where the number of choices is determined by the optionType parameter, where the messageType parameter determines the icon to display. |
| 40 |
static int showConfirmDialog(Component parentComponent, Object message, String title, int optionType, int messageType, Icon icon) Brings up a dialog with a specified icon, where the number of choices is determined by the optionType parameter. |
| 41 |
static String showInputDialog(Component parentComponent, Object message) Shows a question-message dialog requesting input from the user parented to parentComponent. |
| 42 |
static String showInputDialog(Component parentComponent, Object message, Object initialSelectionValue) 
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