Title: a write function, the input n is even, the function call request 1/2 + 1/4 + ... + 1 / n, n is an odd number when the input calling the function 1/1 + 1/3 + .. . + 1 / n
Import java.util.Scanner. 1;
2 {public class Prog39
. 3 public static void main (String [] args) {
. 4 System.out.println ( "Please enter a positive integer:");
. 5 = new new Scan Scanner Scanner (the System .in);
. 6 = n-scan.nextInt int ();
. 7 scan.close ();
. 8 SUM (n-);
. 9}
10 // summation function
. 11 public static void SUM (n-int) {
12 is Double SUM = 0 ;
13 is IF (n-% 2 == 0) {
14 for (int I = 2; I <= n-; = I + 2) {
15 + SUM = 1.0 / I;
16}
. 17 System.out.println ( "you entered is an even number, and the calling function is obtained: "SUM +);
18 is the else {}
. 19 for (int I =. 1; I <= n-; = I + 2) {
20 is SUM + = 1.0 / I;
21 is}
22 System.out.println ( "you entered is an odd number, and the calling function is obtained:" SUM +);
23 is}
24}
25}
26 is / * operation results
27 enter a positive integer:
28. 7
29 Thou input is an odd number, and call the function is obtained: 1.676190476190476
30 * /
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Title: a write function, the input n is even, the function call request 1/2 + 1/4 + ... + 1 / n, n is an odd number when the input calling the function 1/1 + 1/3 + .. . + 1 / n
Import java.util.Scanner. 1;
2 {public class Prog39
. 3 public static void main (String [] args) {
. 4 System.out.println ( "Please enter a positive integer:");
. 5 = new new Scan Scanner Scanner (the System .in);
. 6 = n-scan.nextInt int ();
. 7 scan.close ();
. 8 SUM (n-);
. 9}
10 // summation function
. 11 public static void SUM (n-int) {
12 is Double SUM = 0 ;
13 is IF (n-% 2 == 0) {
14 for (int I = 2; I <= n-; = I + 2) {
15 + SUM = 1.0 / I;
16}
. 17 System.out.println ( "you entered is an even number, and the calling function is obtained: "SUM +);
18 is the else {}
. 19 for (int I =. 1; I <= n-; = I + 2) {
20 is SUM + = 1.0 / I;
21 is}
22 is System.out.println ( "you entered is an odd number, and the calling function is obtained:" SUM +);
23 is}
24}
25}
26 is / * operation results
27 enter a positive integer:
28 7
29 Thou input is an odd number, and call the function is obtained: 1.676190476190476
30 * /