Error : ' ; ' expected

Question

Could someone please tell me what's wrong with the following:
public String convert24ToStd (int hh, int mm)
String PM;
String AM;
hour = (hh > 12 ? PM : AM);
StringBuffer append( hour );
}

Answer 1

Thanks for your reply. I'm sorry but I'm an absolute novice and I'm not even sure what am I doing. I'm just struggling to do this homework.
I haven't done much, but this is what I've got so far:
public class newTime extends Object
private int hour; // 0-23
private int minute; // 0-59
public boolean valid24Time(int hh, int mm)
if ((hh == 0 && hh<=23) && (mm == 0 && mm<=59))
return true;
else
return false;
public String convert24ToStd (int hh, int mm)
String PM;
String AM;
hour = (hh > 12 ? PM : AM);
StringBuffer append( hour );
}