While the JOptionPane class may appear complex because of the large number of methods, almost all uses of this class are one-line calls to one of the static showXxxDialog methods shown below: Each of these methods also comes in a showInternalXXX flavor, which uses an internal frame to hold the dialog box see JInternalFrame. Multiple convenience methods have also been defined -- overloaded versions of the basic methods that use different parameter lists.

All dialogs are modal. Each showXxxDialog method blocks the caller until the user's interaction is complete. In particular, the look-and-feels will adjust the layout to accommodate the option pane's ComponentOrientation property. The parameters to these methods follow consistent patterns: It is used in two ways: In general, the dialog box is placed just below the component. In the most common usage, message is just a String or String constant.

However, the type of this parameter is actually Object. Its interpretation depends on its type: Object[] An array of objects is interpreted as a series of messages one per object arranged in a vertical stack. The interpretation is recursive -- each object in the array is interpreted according to its type. Component The Component is displayed in the dialog.

Icon The Icon is wrapped in a JLabel and displayed in the dialog. The result is wrapped in a JLabel and displayed. The Look and Feel manager may lay out the dialog differently depending on this value, and will often provide a default icon. The possible values are: You can provide any buttons you want using the options parameter. The usual value for the options parameter is an array of String s.

But the parameter type is an array of Objects. A button is created for each object depending on its type: Component The component is added to the button row directly. Icon A JButton is created with this as its label.

A default value for this is determined by the messageType parameter. When the selection is changed, setValue is invoked, which generates a PropertyChangeEvent.

If a JOptionPane has configured to all input setWantsInput the bound property JOptionPane. When one of the showXxxDialog methods returns an integer, the possible values are: Show an error dialog that displays the message, 'alert': To create and use an JOptionPane directly, the standard pattern is roughly as follows: Swing is not thread safe. For more information see Swing's Threading Policy. Serialized objects of this class will not be compatible with future Swing releases.

The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. AccessibleJOptionPane This class implements accessibility support for the JOptionPane class. AccessibleContext getAccessibleContext Returns the AccessibleContext associated with this JOptionPane.

java - Icons on JOptionPane - Stack Overflow

Icon getIcon Returns the icon this pane displays. Object getInitialSelectionValue Returns the input value that is displayed as initially selected to the user. Object getInitialValue Returns the initial value. Object getInputValue Returns the value the user has input, if wantsInput is true.

Object getMessage Returns the message-object this pane displays. Object [] getOptions Returns the choices the user can make. Object [] getSelectionValues Returns the input selection values. Object getValue Returns the value the user has selected. Look and feel will provide the UI component to choose this from. None of the options is initially selected. The options objects should contain either instances of Component s, which are added directly or Strings which are wrapped in a JButton.

If you provide Component s, you must ensure that when the Component is clicked it messages setValue in the created JOptionPane. The dialog uses the default frame, which usually means it is centered on the screen. HeadlessException - if GraphicsEnvironment. The dialog is displayed on top of the Component 's frame, and is usually positioned below the Component. The input value will be initialized to initialSelectionValue. The user will able to choose from selectionValueswhere null implies the user can input whatever they wish, usually by means of a JTextField.

It is up to the UI to decide how best to represent the selectionValuesbut usually a JComboBoxJListor JTextField will be used. The messageType parameter is primarily used to supply a default icon from the Look and Feel. The messageType parameter is primarily used to supply a default icon from the look and feel.

The returned JDialog will not be resizable by the user, however programs can invoke setResizable on the JDialog instance to change this property.

The returned JDialog will be set up such that once it is closed, or the user clicks on one of the buttons, the optionpane's value property will be billboard money makers 2016 accordingly and the dialog will be closed.

Each time the dialog is made visible, it will reset the option pane's value property to JOptionPane. The dialog is a information-message dialog titled "Message". Other objects are converted to a String using the toString method title - the title string for the dialog optionType - an integer designating the options available on the dialog: The dialog is displayed in the Component 's frame, and is usually positioned below the Component.

The JOptionPane Message Type and Icon Arguments : JOptionPane Dialog « Swing « Java Tutorial

The internal frame is created with the specified title, and wrapping the JOptionPane. The returned JInternalFrame is added to the JDesktopPane ancestor of parentComponentor components parent if one its ancestors isn't a JDesktopPaneor if parentComponent doesn't have a parent then a RuntimeException is thrown. It is recommended that rather than using this method you supply a valid parent.

Replaces the current UI object with the latest version treasury stock buyback method the Jet2 jobs working from home. If non- nullthe look and feel does not provide an trading forex markets good vibrations. Otherwise the returned value will be one of the options defined in this object.

If an element in newOptions is a Component it is added google adsense ebook make money to the pane, otherwise a button is created for the element. The message type is used by the Look and Feel to determine the icon to display if not supplied as well as potentially how to lay out the parentComponent. RuntimeException - if newType is not one of the legal values listed above See Also: The option type is used by the Look treasury stock buyback method Feel to determine what buttons to show unless options are supplied.

The UI provides a widget for choosing one of the values. A null value implies the user chesnee livestock market input whatever they wish, usually by means of a JTextField.

Sets wantsInput to true. Use setInitialSelectionValue to specify the initially-chosen value. After the pane as been enabled, inputValue is set to the value the user has selected.

Java: JOptionPane showMessageDialog examples (part 1) | pupuzifecose.web.fc2.com

Only used if wantsInput is true. ObjectsetSelectionValues java. Note that this method is invoked internally by the option pane in response to user action and should generally not be called by client programs. To set the input value initially displayed as selected to the user, use setInitialSelectionValue. Object[]setInitialSelectionValue java. Object[]setWantsInput booleansetInputValue java. Default is to return Integer. The value can be changed by overriding this method in a subclass.

If newValue is true, an input component such as a text field or combo box whose parent is parentComponent is provided to allow the user to input a value. If getSelectionValues returns a non- null array, the input value is one of the objects in that array. Otherwise the input value is whatever the user inputs. This is a bound property.

Object[]setInputValue java. This method should be invoked after the window containing the option pane is made visible. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null. For option panes, the AccessibleContext takes the form of an AccessibleJOptionPane.

A new AccessibleJOptionPane instance is created if necessary. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, binary options buddy v2 working code examples. Use is subject to license terms. Also see the documentation redistribution policy.

Prev Class Next Class Frames No Frames All Classes. JOptionPane All Implemented Interfaces: ImageObserverMenuContainerSerializableAccessible public class JOptionPane extends JComponent implements Accessible JOptionPane makes it easy to pop up a standard dialog box that prompts earn money referral paypal for a value or informs them of something.

For information about using JOptionPanesee How to Make Dialogsa section in The Java Tutorial. Type meaning Look and Feel should not supply any options -- only use the options from the JOptionPane. Scottrade options minimum balance a instance of JOptionPane to display a message using the plain-message message type and the default options delivered by the UI.

Creates joptionpane showmessagedialog icon instance of JOptionPane to display a message with the specified message type and the default options.

Error (Forbidden)

Creates an instance of JOptionPane to display a message with the specified message type and options. Creates an instance of JOptionPane to display a message with the specified message type, options, and icon. Creates an instance of JOptionPane to display a message with the specified message type, icon, and options. Creates an instance of JOptionPane to display a message with the specified message type, icon, and options, with the initially-selected option specified.

Creates and returns a new JDialog wrapping this centered on the parentComponent in the parentComponent 's frame. Creates and returns a new parentless JDialog with the specified title. Returns the Frame to use for the class methods in which a frame is not provided.

Requests that the initial value be selected, which will set focus to the initial value. Sets the initial value that is to be enabled -- the Component that has the focus when the pane is initially displayed. Sets the input selection values for a pane that provides the user with a list of items to choose from. Brings up a dialog with the options YesNo and Cancel ; with the title, Select an Option. Brings up a dialog where the number of choices is determined by the optionType parameter.

Brings up a dialog where the number of choices is determined by the optionType parameter, where the messageType parameter determines the icon to display. Brings up a dialog with a specified icon, where the number of choices is determined by the optionType parameter. Shows a question-message dialog requesting input from the user parented to parentComponent. Shows a question-message dialog requesting input from the user and parented to parentComponent.

Shows a dialog requesting input from the user parented to parentComponent with the dialog having the title title and message type messageType.

Prompts the user for input in a blocking dialog where the initial selection, possible selections, and all other options can be specified. Shows a question-message dialog requesting input from the user, with the input value initialized to initialSelectionValue. Brings up an internal dialog panel with the options YesNo and Cancel ; with the title, Select an Option.

Brings up a internal dialog panel where the number of choices is determined by the optionType parameter. Brings up an internal dialog panel where the number of choices is determined by the optionType parameter, where the messageType parameter determines the icon to display. Brings up an internal dialog panel with a specified icon, where the number of choices is determined by the optionType parameter.

Shows an internal question-message dialog requesting input from the user parented to parentComponent. Shows an internal dialog requesting input from the user parented to parentComponent with the dialog having the title title and message type messageType. Prompts the user for input in a blocking internal dialog where the initial selection, possible selections, and all other options can be specified. Brings up an internal dialog panel that displays a message using a default icon determined by the messageType parameter.

Brings up an internal dialog panel displaying a message, specifying all parameters. Brings up an internal dialog panel with a specified icon, where the initial choice is determined by the initialValue parameter and the number of choices is determined by the optionType parameter. Brings up a dialog that displays a message using a default icon determined by the messageType parameter.

Brings up a dialog with a specified icon, where the initial choice is determined by the initialValue parameter and the number of choices is determined by the optionType parameter.

Array of values the user can choose from. Shows a question-message dialog requesting input from the user. Brings up an internal confirmation dialog panel.

Creates and returns an instance of JInternalFrame. Sets the frame to use for class methods in which a frame is not provided. Sets the icon to display. Returns the value the user has selected. Sets the options this pane displays. Sets the option pane's message type. Sets the options to display. Sets the input value that is initially displayed as selected to the user. Sets the input value that was selected or input by the user.

Returns the maximum number of characters to place on a line in a message. Sets the wantsInput property. Returns a string representation of this JOptionPane. Returns the AccessibleContext associated with this JOptionPane.

JOptionPane Creates a JOptionPane with a test message.