Common Methods of JOptionPane prompt box

1.1 showMessageDialog

A modal dialog box with the OK button is displayed.

The following are several examples of using showMessageDialog:

Java code

1. JOptionPane. showMessageDialog (null, "tip ");

The effect is as follows:

 

Java code

1. JOptionPane. showMessageDialog (jPanel, "message", "title", JOptionPane. WARNING_MESSAGE );

The effect is as follows:

Java code

1. JOptionPane. showMessageDialog (null, "message.", "title", JOptionPane. ERROR_MESSAGE );

 

 

Java code

1. JOptionPane. showMessageDialog (null, "message.", "title", JOptionPane. PLAIN_MESSAGE );

 

 

1.2 showOptionDialog

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

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:

Personalized message box:

 

Java code

1. Object [] options = {"OK! "," Go to the other side! "};
2. Int m = JOptionPane. showOptionDialog (null, "can I ask you? "," Title ", JOptionPane. YES_NO_OPTION, JOptionPane. QUESTION_MESSAGE, null, options, options [0]);

The effect is as follows:

1.3ShowInoutDialog

This method returns an Object type. This Object type is generally a String type, reflecting the user input.

Example of a drop-down list:

Java code

1. Object [] obj2 = {"football", "basketball", "Table Tennis "};
2. String s = (String) JOptionPane. showInputDialog (null, "Please select your hobbies: \ n", "hobbies", JOptionPane. PLAIN_MESSAGE, new ImageIcon ("icon.png"), obj2, "soccer ");

The effect is as follows:

Example of text box format:

Java code

1. JOptionPane. showInputDialog (null, "Enter your hobbies: \ n", "title", JOptionPane. PLAIN_MESSAGE, icon, null, "Enter here ");

The effect is as follows:

For the corresponding small icons, refer: