I have posted this question before but now I have a different problem so I thoug
ID: 3930691 • Letter: I
Question
I have posted this question before but now I have a different problem so I thought it was best to ask a new question. Here is my original question(https://www.chegg.com/homework-help/questions-and-answers/tried-question-issues-source-code-errors-compiling-source-code-set-newestimate-completely--q15801445). My issue now is that my code is a never-ending loop and I am getting no output. Here is my new code:
import java.lang.Math;
public class GeneratingPi {
public static void main(String[] args) {
double estimate=3.14;
double oldEstimate=0;
double difference = estimate-oldEstimate;
double counter = 0;
while (difference > ((Math.E)-8)) {
estimate = 4*(Math.pow(-1, counter))/(2*counter + 1);
estimate += oldEstimate;//but if i do this before the difference, difference will equal 0.
difference = Math.abs(oldEstimate-estimate);
counter++;
}//loop isn't ending.
System.out.println("It took " + counter + " iterations for the difference to be less than 1E-8");
System.out.println("The value of the estimate is " + oldEstimate + " The value of Pi is " + Math.PI);
}
}
Originally I had the estimate+=oldEstimate before the difference calculation but my professor told me I needed to do it before. I just don't know how else to manipulate it. Please help
Explanation / Answer
Program:
import java.lang.Math;
public class GeneratingPi {
public static void main(String[] args) {
double estimate=3.14;
double oldEstimate=0;
double difference = (double)(estimate-oldEstimate);
double counter = 0;
while (difference < ((Math.E)-8)) {
// If we use > value then it leads to infinite loop and loop doesnot end
estimate = 4*((Math.pow(-1, counter))/(2*counter + 1));
estimate += oldEstimate;//but if i do this before the difference, difference will equal 0.
difference = Math.abs(oldEstimate-estimate);
counter++;
}//loop isn't ending.
System.out.println("It took " + counter + " iterations for the difference to be less than 1E-8");
System.out.println("The value of the estimate is " + oldEstimate + " The value of Pi is " + Math.PI);
}
}
Output:
It took 0.0 iterations for the difference to be less than 1E-8
The value of the estimate is 0.0
The value of Pi is 3.141592653589793