how to set default programs for opening files

public static void openFile(int selecType, File fileName) throws Exception else if(url.toString().contains('.3gp') || url.toString().contains('.mpg') || url.toString().contains('.mpeg') || url.toString().contains('.mpe') || url.toString().contains('.mp4') || url.toString().contains('. Runtime.getRuntime().exec('rundll32.exe SHEL元2.DLL,OpenAs_RunDLL ' + fileName) Runtime.getRuntime().exec('explorer.exe ' + fileName) Runtime.getRuntime().exec('powershell.exe /c Start ' + fileName) To the right, click ' Change ' and select ' Windows photo gallery '. Under the 'General' tab (which should be what is opened up first), you'll see 'Opens with: Adobe Reader'. Runtime.getRuntime().exec('cmd.exe /c Start ' + fileName) To change the default program for opening JPEGs: Right click on any. Runtime.getRuntime().exec(fileName.toString()) Few examples to open files with default program Example 1 : Runtime.getRuntime().exec('rundll32.exe shell32.dll ShellExec_RunDLL ' + fileName) Įxample 2 : Runtime.getRuntime().exec('rundll32.exe url.dll FileProtocolHandler ' + fileName) Įxample 3 : Desktop.getDesktop().open(fileName)

How to set default programs for opening files