int a = 0;
for (int i = 0; i < 99; i++) {
a = a ++;
}
System.out.println(a);
int b = 0;
for (int i = 0; i < 99; i++) {
b = ++ b;
}
System.out.println(b);
Integer a = 0;
int b = 0;
for (int i = 0; i < 99; i++) {
a = a ++;
b = a ++;
}
System.out.println(a);
System.out.println(b);