private void buttonMoveCursorActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_buttonMoveCursorActionPerformed
   TerminalSize terminalSize = scrollingSwingTerminal.getTerminalSize();
   Random random = new Random();
   scrollingSwingTerminal.setCursorPosition(
       random.nextInt(terminalSize.getColumns()), random.nextInt(terminalSize.getRows()));
   scrollingSwingTerminal.flush();
 } // GEN-LAST:event_buttonMoveCursorActionPerformed
 private void printLines(int howMany) {
   Random random = new Random();
   String selection = "abcdefghijklmnopqrstuvxyzåäö";
   for (int i = 0; i < howMany; i++) {
     int words = random.nextInt(10) + 1;
     for (int j = 0; j < words; j++) {
       int length = random.nextInt(10) + 2;
       for (int k = 0; k < length; k++) {
         scrollingSwingTerminal.putCharacter(selection.charAt(random.nextInt(selection.length())));
       }
       scrollingSwingTerminal.putCharacter(' ');
     }
     scrollingSwingTerminal.putCharacter('\n');
   }
   scrollingSwingTerminal.flush();
 }