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feat: kata/summing-a-numbers-digits #766

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4 changes: 2 additions & 2 deletions docs/README.md
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
# Codewars Handbook ☕️🚀

[![Views statistics +1 👀](https://img.shields.io/badge/dynamic/xml?color=success&label=views&query=//*[name()=%27text%27][3]&url=https://hits.seeyoufarm.com/api/count/incr/badge.svg?url=https%3A%2F%2Fgithub.jparrowsec.cn%2FParanoidUser%2Fcodewars-handbook)](https://hits.seeyoufarm.com/api/count/graph/dailyhits.svg?url=https://github.com/ParanoidUser/codewars-handbook)
[![Completed kata 👌](https://img.shields.io/badge/completed%20kata-69.4%25-red.svg)](https://www.codewars.com/kata/search/java?xids=completed)
[![Completed kata 👌](https://img.shields.io/badge/completed%20kata-69.3%25-red.svg)](https://www.codewars.com/kata/search/java?xids=completed)
[![CI pipeline 🛠](https://img.shields.io/github/actions/workflow/status/ParanoidUser/codewars-handbook/build.yml?branch=main)](https://github.com/ParanoidUser/codewars-handbook/actions/workflows/build.yml)
[![Quality gate 🔎](https://img.shields.io/sonar/alert_status/codewars-handbook?server=https%3A%2F%2Fsonarcloud.io)](https://sonarcloud.io/dashboard?id=codewars-handbook)
[![Let's have a chat! 📞](https://img.shields.io/gitter/room/ParanoidUser/codewars-handbook?color=49c39e)](https://gitter.im/ParanoidUser/codewars-handbook)
Expand All @@ -25,7 +25,7 @@ slug.

| [1 kyu](/kata/1-kyu/index.md) | [2 kyu](/kata/2-kyu/index.md) | [3 kyu](/kata/3-kyu/index.md) | [4 kyu](/kata/4-kyu/index.md) | [5 kyu](/kata/5-kyu/index.md) | [6 kyu](/kata/6-kyu/index.md) | [7 kyu](/kata/7-kyu/index.md) | [8 kyu](/kata/8-kyu/index.md) | [beta](/kata/beta/index.md) | [retired](/kata/retired/index.md) |
|:-----------------------------:|:-----------------------------:|:-----------------------------:|:-----------------------------:|:-----------------------------:|:-----------------------------:|:-----------------------------:|:-----------------------------:|:---------------------------:|:---------------------------------:|
| 0 | 1 | 2 | 26 | 48 | 445 | 607 | 228 | 59 | 82 |
| 0 | 1 | 2 | 26 | 48 | 445 | 608 | 228 | 59 | 82 |

**Note:** The source code is written in Java 17 and may use language features that are incompatible
with Java 8, 11.
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1 change: 1 addition & 0 deletions kata/7-kyu/index.md
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- [Sum of Triangular Numbers](sum-of-triangular-numbers "580878d5d27b84b64c000b51")
- [Sum of two lowest positive integers](sum-of-two-lowest-positive-integers "558fc85d8fd1938afb000014")
- [Summation Triangle #1](summation-triangle-number-1 "6357825a00fba284e0189798")
- [Summing a number's digits](summing-a-numbers-digits "52f3149496de55aded000410")
- [Supernatural](supernatural "55c9a8cda33889d69e00008b")
- [Survive the attack](survive-the-attack "634d0f7c562caa0016debac5")
- [Suzuki needs help lining up his students!](suzuki-needs-help-lining-up-his-students "5701800886306a876a001031")
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13 changes: 13 additions & 0 deletions kata/7-kyu/summing-a-numbers-digits/README.md
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# [Summing a number's digits](https://www.codewars.com/kata/summing-a-numbers-digits "https://www.codewars.com/kata/52f3149496de55aded000410")

Write a function which takes a number as input and returns the sum of the absolute value of each of the number's decimal digits.

For example: (**Input --> Output**)

```
10 --> 1
99 --> 18
-32 --> 5
```

Let's assume that all numbers in the input will be integer values.
5 changes: 5 additions & 0 deletions kata/7-kyu/summing-a-numbers-digits/main/Kata.java
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interface Kata {
static int sumDigits(int number) {
return (Math.abs(number) + "").chars().reduce(0, (s, i) -> s + i - 48);
}
}
16 changes: 16 additions & 0 deletions kata/7-kyu/summing-a-numbers-digits/test/SolutionTest.java
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import static org.junit.jupiter.api.Assertions.assertEquals;

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;

class SolutionTest {
@ParameterizedTest
@CsvSource(textBlock = """
10, 1
99, 18
-32, 5
""")
void sample(int number, int expected) {
assertEquals(expected, Kata.sumDigits(number));
}
}
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