Copying to the clipboard in Java [duplicate]

Use the Toolkit to get the system clipboard. Create a StringSelection with the String and add it to the Clipboard.

Simplified:

StringSelection selection = new StringSelection(theString);Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();clipboard.setContents(selection, selection);

Here is a simple SSCCE to accomplish this:

import java.awt.*;import java.awt.datatransfer.*;import java.io.*;class ClipboardTest{    public static void main(String[] args)        throws UnsupportedFlavorException, IOException    {        Clipboard c = Toolkit.getDefaultToolkit().getSystemClipboard();        StringSelection testData;        //  Add some test data        if (args.length > 0)            testData = new StringSelection( args[0] );        else            testData = new StringSelection( "Test Data" );        c.setContents(testData, testData);        //  Get clipboard contents, as a String        Transferable t = c.getContents( null );        if ( t.isDataFlavorSupported(DataFlavor.stringFlavor) )        {            Object o = t.getTransferData( DataFlavor.stringFlavor );            String data = (String)t.getTransferData( DataFlavor.stringFlavor );            System.out.println( "Clipboard contents: " + data );        }        System.exit(0);    }}

For anyone still stumbling upon this post searching for the JavaFX way to accomplish this, here you go:

ClipboardContent content = new ClipboardContent();content.putString("Some text");content.putHtml("<b>Bold</b> text");Clipboard.getSystemClipboard().setContent(content);

For further information, read the documentation.