From 06db4bbb8b43b7ca2ac0a109eff7f25930122cdd Mon Sep 17 00:00:00 2001
From: Colin DAMON <cdamon@ippon.fr>
Date: Sun, 26 Jul 2020 16:46:46 +0200
Subject: [PATCH] Declare Calculator as a static class
---
.../main/java/fr/ippon/stringcalculator/Calculator.java | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/stringCalculator/src/main/java/fr/ippon/stringcalculator/Calculator.java b/stringCalculator/src/main/java/fr/ippon/stringcalculator/Calculator.java
index 792c5707..61f4a877 100644
--- a/stringCalculator/src/main/java/fr/ippon/stringcalculator/Calculator.java
+++ b/stringCalculator/src/main/java/fr/ippon/stringcalculator/Calculator.java
@@ -3,7 +3,10 @@ package fr.ippon.stringcalculator;
import java.math.BigDecimal;
import java.util.function.BinaryOperator;
-public class Calculator {
+public final class Calculator {
+
+ private Calculator() {
+ }
public static String sum(String first, String second) {
return operate(first, second, BigDecimal::add);
@@ -14,8 +17,8 @@ public class Calculator {
return operate(first, second, BigDecimal::subtract);
}
- private static String operate(String first,
- String second, BinaryOperator<BigDecimal> operation) {
+ private static String operate(String first, String second,
+ BinaryOperator<BigDecimal> operation) {
notNull(first);
notNull(second);
--
GitLab