Fibonacci sums help!

[RAWR-itsanONION]

I'm working with metrowerks codewarrior to do this program.

This program asks you to create fibonacci sums up to 2^23 and then asks you to do some more stuff after that.

I'm just wondering if you would set up an array or a for or a while loop to complete this program easier and how would you set that up?

Since fibonacci is the last 2 added together to create the next integer i was thinking along the lines of a + b = sum and then save it to part of an array. Then create an if statement after to make it so that when the next integer is bigger than b then it replaces b and the old b replaces a.

Am i thinking along the right lines??

Try it. See what happens.

[jwenting]

except of course an array would be useless since you wouldn't know the size of the array behorehand.
You'll have to use some ordered Collection to store your results.

[deng_cen]

:) hi:
you can see that code.Maybe is right.

package com.jmenu;
public class Fibonacci {
public static void main(String agre[]){
double frontsum=0;
int finditem=3;
double a=Double.parseDouble(agre[0]);
System.out.println(a);
frontsum = calculateItemSum(finditem);
do{
finditem++;
frontsum+=calculateItemSum(finditem);
}while(frontsum<a);
System.out.printf("sum is: %f",frontsum);
System.out.printf("item is: %d",finditem);
System.out.printf("\nitem is: %f",calculateItemSum(96));
System.out.printf("\n -: %f",frontsum-calculateItemSum(96));
}
 
 
 
static double calculateItemSum(int i){
double a=2,b=2,c=0;
int item=3;
while(item<=i){
c=a+b;
a=b;
b=c;
item++;
}
return c;
}
}