pieces simple java code

1. getStringTime in Calendar

public String getStringTime() {
Calendar calendar = Calendar.getInstance();
Date date = new Date();
calendar.setTime(date);
return calendar.get(Calendar.HOUR_OF_DAY)+":"
+calendar.get(Calendar.MINUTE)+":"
+calendar.get(Calendar.MILLISECOND);
}

2.debug

//No need to type many System.out.println...
public void debug(String str){
System.out.println("debug: " + str);
}