Some common methods of the Joptionpane class hint box

The Joptionpane class encapsulates a number of methods.

Very convenient, so simple to tidy up a bit.

1.1 Showmessagedialog

Displays a modal dialog box with an OK button.

Here are a few examples of using Showmessagedialog:

Java code

1. Joptionpane.showmessagedialog (NULL, "friendly hints");

The effect is as follows:

Java code

1. Joptionpane.showmessagedialog (JPanel, "hint message", "title", Joptionpane.warning_message);

The effect is as follows:

Java code

1. Joptionpane.showmessagedialog (NULL, "prompt message.", "title", Joptionpane.error_message);

Java code

1. Joptionpane.showmessagedialog (NULL, "prompt message.", "title", Joptionpane.plain_message);

1.2 Showoptiondialog

This function can change the text displayed on the button. You can also perform more personalized actions.

General message Box:

Java code

1. int n = joptionpane.showconfirmdialog (null, "Are you happy?", "title", joptionpane.yes_no_option);//I=0/1

The effect is as follows:

Statement message box:

Java code

1. object[] Options ={"Good!" "Go aside!" " };
2. int m = Joptionpane.showoptiondialog (null, "Can I ask you out?") "," title ", Joptionpane.yes_no_option, Joptionpane.question_message, NULL, Options, options[0]);

The effect is as follows:

1.3 Showinoutdialog

The method returns an object type. This type of object is typically a string type that reflects the user's input.

Example of the form of a drop-down list:

Java code

1. Object[] Obj2 ={"Football", "basketball", "Table tennis"};
2. string s = (string) Joptionpane.showinputdialog (NULL, "Please choose your hobby: \ n", "hobby", Joptionpane.plain_message, New ImageIcon (" Icon.png "), Obj2," football ");

The effect is as follows:

Examples of text box forms:

Java code

1. Joptionpane.showinputdialog (NULL, "Please enter your hobby: \ n", "title", Joptionpane.plain_message,icon,null, "Enter in this");

The effect is as follows:

The corresponding small icon can be referenced by:

For detailed explanations, refer to the Oracle website

Some common methods of the Joptionpane class hint box