public class jiec {
public void forf(){
double sum = 1;
for (int i = 1; i < 100; i++) {
sum = sum*i;
}
System.out.println(sum);
}
public void whiles(){
double sum = 1;
int i=1;
while(i<100){
sum = sum*i;
i++;
}
System.out.println(sum);
}
public void dowhile(){
double sum =1;
int i=1;
do{
sum = sum*i;
i++;
}while(i<100);
System.out.println(sum);
}
public static void main(String[] args) {
jiec j = new jiec();
j.forf();
j.whiles();
j.dowhile();
}
}
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