Pi Java Source Code Problems, need help
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# Thread: Pi Java Source Code Problems, need help

1. Junior Member
Join Date
Oct 2013
Posts
1

## Pi Java Source Code Problems, need help

Hey guys, I'm a student of java currently and am learning to put together a PI code, this is as far as I got and need to modify some things before I complete it, can I get some help on what to do from here, any help appriciated!

Code:
```import java.util.Scanner;
import java.text.DecimalFormat;
public class PiSourceCode
{
public static void main (String [] args)
{
Scanner k = new Scanner (System.in);
// Calculate pi using method number 1
double pi1;// calculated value of PI method 1
// Gregory-Leibniz Series calculation
double t1, t2, t3, t4;
double sum3, sum4;
t1 = 4.0/1.0; t2 = 4.0/3.0; t3 = 4.0/5.0; t4 = 4.0/7.0;
sum3 = t1 - t2 + t3;
sum4 = t1 - t2 + t3 - t4;
// calculate the average of the sum of 3 terms and the sum of 4 terms
pi1 = (sum3 + sum4)/2.0;
// Place your code to calculate pi1, method 1
System.out.printf ("Gregory-Leibniz Method\nPI = %17.16f\n", pi1);
System.out.printf ("System Value\nPI = %17.16f\n",Math.PI);
//Determine difference between computed PI and system value for PI
double difference1 = Math.abs(Math.PI-pi1);
// Determine how accurate the result was
int count;
while ((Math.round(difference1)) == 0 && count <16)
{
count ++;
difference1 *= 10;
}
System.out.printf ("Gregory-Leibniz is accurate to %d digits\n", count);
double pi2; //calculated value of pi, method 2
// Place your code here to calculate pi2 using method 2
// Based on Nilakantha Series
t1 = 3.0; t2 = 4.0/(2.0*3.0*4.0); t3 = 4.0/(4.0*5.0*6.0); t4 = 4.0/(6.0*7.0*8.0);
sum3 = t1 + t2 - t3;
sum4 = t1 + t2 - t3 + t4;
pi2 = (sum3+sum4)/2.0;
System.out.printf ("Nilakantha Series\nPI = %17.16f\n", pi2);
System.out.printf ("System Value\nPI = %17.16f\n",Math.PI);
//Determine difference between computed PI and system value for PI
difference1 = Math.abs(Math.PI-pi2);
// Difference how accurate the result was
count = 0;
while ((Math.round(difference1)) == 0 && count <16)
{
count ++;
difference1 *= 10;
}
System.out.printf ("Nilakantha Series is accurate to %d digits\n", count);
}
}```
Last edited by HanneSThEGreaT; November 1st, 2013 at 03:45 AM. Reason: added code tags

2. ## Re: Pi Java Source Code Problems, need help

Originally Posted by ivantomljanovic
Hey guys, I'm a student of java currently ...
Then why do you post this question to Visual C++ Programming forum, not to the Java one?
Besides, you should use Code tags while posting code snippets!

3. ## Re: Pi Java Source Code Problems, need help

[ Moved Thread To Java Forum ]

4. ## Re: Pi Java Source Code Problems, need help

Instead of saying you need help on certain things, please let us know where you get errors or strange results, so that it is easier to pinpoint the problem(s)

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