Discuss / Java / public class JiSuanYanZhouLv { public static void main(String[] args) { double n = 0;

public class JiSuanYanZhouLv { public static void main(String[] args) { double n = 0;

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public class JiSuanYanZhouLv {
    public static void main(String[] args) {
        double n = 0;        double sum = 0 ;        double reduce = 0;        double pai = 0;        for (double i = 2;i < 999999999 ;i++){
            i+=3;            sum = sum + 1/i;        }
        System.out.println(sum);        for (double j = 0;j < 999999999 ;j++){
            j+=3;            reduce = reduce + 1/j;        }
        System.out.println(reduce);        pai = (1+sum-reduce)*4;        System.out.println(pai);    }
}
public class JiSuanYanZhouLv {    public static void main(String[] args) {        double n = 0;        double sum = 0 ;        double reduce = 0;        double pai = 0;        for (double i = 2;i < 999999999 ;i++){            i+=3;            sum = sum + 1/i;        }        System.out.println(sum);        for (double j = 0;j < 999999999 ;j++){            j+=3;            reduce = reduce + 1/j;        }        System.out.println(reduce);        pai = (1+sum-reduce)*4;        System.out.println(pai);    }}

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