Judging by some of the 'professional' code I've read over the years, I'd say that's not a particularly high bar...! At least if you're horrified by code you wrote, it shows you care, and that shows some promise :)
String myBoolean = "yes" boolean alanIsABastard = true;
public class ClassWithBadNoGoodNameForSharingStuffCommonToHandlers { //TODO rename
public void encryptCreditCard(int[] cc) {
int tmp = cc[0];
cc[0] = cc[6];
cc[6] = tmp;
// and so on...
}