A quick question about constructor style:
Which do you prefer, independently built constructors or nested
constructors?

eg.
// Eclipse automatically generated style
AClass() {
}
AClass(String str) {
 this.str = str;
}
AClass(String str, int num) {
 this.str = str;
 this.num = num;
}

or
// "Elements of Java Style" recommended style
AClass(String str, int num) {
 this.string = string;
 this.num = num;
}
AClass(String str) {
 this(str, DEFAULT_NUM);
}
AClass() {
 this("", DEFAULT_NUM);
}