Show splash screen for x amount of seconds

Is there a better way to show a splash screen for x seconds than putting it in a while loop? It just seems so inefficiant and it uses a lot of processing power. This is what I have:long startTime = System.currentTimeMillis();

while(System.getCurrentTimeMillis() <= startTime + 5000){

//wait

}

mainPage.setVisible(true);

[537 byte] By [drawimagea] at [2007-11-27 9:01:49]