joptionpane default value showinputdialog

Question

Can i do that ? I want to set default value of my option pane is 9090.. This is my option pane code

private static int setPortNumber()
{
    String portNumber = JOptionPane.showInputDialog(frame,
            "Enter the Port number for server creation","Server Connection\n",
            JOptionPane.OK_CANCEL_OPTION);
    int PORT = Integer.parseInt(portNumber);

    return PORT;

}

The user would probably prefer seeing a `JSpinner` (with a `SpinnerNumberModel`) for the component. You'd pass it as the object to the option pane `showMessageDialog(..)`, and query it straight afterwards in the next line of code.. E.G. as seen in [this answer](http://stackoverflow.com/a/10021773/418556). — Andrew Thompson, Jan 04 '14 at 13:40

Anirban Nag 'tintinmj' · Accepted Answer · 2014-01-04T18:10:50.390

6

Yes you can do that.

private static int setPortNumber()
{

    String [] possiblePorts = { "9090", "8080", "8081" }; 
    String selectedPort = (String) JOptionPane.showInputDialog(frame, "Select the Port number for server creation", "Server Connection\n", JOptionPane.OK_CANCEL_OPTION, null, possiblePorts, possiblePorts[0]);

    int PORT = Integer.parseInt(selectedPort);

    return PORT;

}

In this way user need not to write just select.

edited Jan 04 '14 at 18:10

answered Jan 04 '14 at 13:37

Anirban Nag 'tintinmj'

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wow other good answer.. but there is a little error, you must add `(String)` before JOptionPane. – vallen Jan 04 '14 at 13:42

Reimeus · Answer 2 · 2014-01-04T13:36:55.140

3

String portNumber = (String) JOptionPane.showInputDialog(frame,
        "Enter the Port number for server creation",
        "Server Connection\n", JOptionPane.OK_CANCEL_OPTION, null,
        null, "9090");

Read the docs

edited Jan 04 '14 at 13:36

answered Jan 04 '14 at 13:31

Reimeus

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joptionpane default value showinputdialog

2 Answers2