how to make a method using three digits chopping

[erashabani]

hi, can anyone help me how to make a method using three digits chopping to sum a finite series in java? any idea of coding? example how to compute a finit serie 1+1/4+1/9+...+1/100 using three digitts chopping in java ...

 

[prosper]

You need to have basic knowledge in Java Programming to write such method.

For chopping the digits, you may use the substring method in Java.lang.String class.

http://www.cs.geneseo.edu/~baldwin/reference/java-strings.html

For calculating the sum of 1+1/4+1/9+...+1/100, you may use java.math.BigDecimal class to minimize the lose in precision during calcuation.

http://java.sun.com/j2se/1.4.2/docs/api/java/math/BigDecimal.html

http://archive.devnewz.com/devnewz-...cimalClassHelpsJavagetitsArithmeticRight.html

 

[erashabani]

thnx prosper i did the program i just use string and substring so i chopped the numbers thank you very much...