In a programming exam, we had to write a program in 60 minutes, part of which was sorting some strings by length (strings the same length had to be in the same line)... I had like 3 minutes left, so i wrote this beauty:

boolean b = false;
for(int i = 0; i <= 999999; i++){
for(int j = 0; j <= strings.length; j++){
if(i == strings[j].length()){
System.out.print(s + " ");
b = true;
}
}
if(b){
System.out.println();
b = false;
}
}