int i = 1;
while () {
System.out.println(i);
i++;
}
int i = 10;
while i > 0 {
System.out.println(i);
i--;
}
for(int i = 0; i <; i++)
int i = 1;
do {
System.out.println(i);
i++;
} while (i <= 3);
int i = 0;
for (; i < 5; i++) {
System.out.println(i);
}