Answer Posted / s

package com.adder;

import java.math.BigDecimal;
import java.math.RoundingMode;

public class GeneralJava {

/**
* @param args
*/
public static void main(String[] args) {
System.out.println(new GeneralJava().process
(10));
}

private double process(int n) {

BigDecimal retVal = BigDecimal.ZERO;

for (int i=1; i<= n; i++) {

BigDecimal adder =
BigDecimal.ONE.divide(BigDecimal.valueOf(i),10,
RoundingMode.HALF_UP);

retVal = retVal.add(adder);

}

return retVal.doubleValue();
}
}

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