Java Program to find the sum of a Series 1/1! + 2/2! + 3/3! + 4/4! +…….+ n/n!

You have been given a series 1/1! + 2/2! + 3/3! + 4/4! +…….+ n/n!, find out the sum of the series till nth term.

**Examples:**

Input :n = 5 Output : 2.70833 Input :n = 7 Output : 2.71806

`// Java program to print the sum of series ` ` ` `import` `java.io.*; ` `import` `java.lang.*; ` ` ` `class` `GFG { ` ` ` `public` `static` `double` `sumOfSeries(` `double` `num) ` ` ` `{ ` ` ` `double` `res = ` `0` `, fact = ` `1` `; ` ` ` `for` `(` `int` `i = ` `1` `; i <= num; i++) { ` ` ` `/*fact variable store factorial of the i.*/` ` ` `fact = fact * i; ` ` ` ` ` `res = res + (i / fact); ` ` ` `} ` ` ` `return` `(res); ` ` ` `} ` ` ` ` ` `public` `static` `void` `main(String[] args) ` ` ` `{ ` ` ` `double` `n = ` `5` `; ` ` ` `System.out.println(` `"Sum: "` `+ sumOfSeries(n)); ` ` ` `} ` `} ` ` ` `// Code contributed by Mohit Gupta_OMG <(0_o)> ` |

**Output:**

Sum: 2.708333333333333

Please refer complete article on Program to find the sum of a Series 1/1! + 2/2! + 3/3! + 4/4! +…….+ n/n! for more details!

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