BAEL-5729 Convert Hex to RGB Using Java (#13432)

core-java-modules/core-java-hex/pom.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>core-java-hex</artifactId>
+    <version>0.1.0-SNAPSHOT</version>
+    <name>core-java-hex</name>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung.core-java-modules</groupId>
+        <artifactId>core-java-modules</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+        
+    </dependencies>
+
+    <properties>
+        
+    </properties>
+
+</project>

core-java-modules/core-java-hex/src/test/java/com/baeldung/hextorgb/HexToRgbUnitTest.java

@@ -0,0 +1,25 @@
+package com.baeldung.hextorgb;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import org.junit.jupiter.api.Test;
+
+class HexToRgbUnitTest {
+
+    @Test
+    public void givenHexCode_whenConvertedToRgb_thenCorrectRgbValuesAreReturned() {
+        String hexCode = "FF9933";
+        int red = 255;
+        int green = 153;
+        int blue = 51;
+
+        int resultRed = Integer.valueOf(hexCode.substring(0, 2), 16);
+        int resultGreen = Integer.valueOf(hexCode.substring(2, 4), 16);
+        int resultBlue = Integer.valueOf(hexCode.substring(4, 6), 16);
+
+        assertEquals(red, resultRed);
+        assertEquals(green, resultGreen);
+        assertEquals(blue, resultBlue);
+    }
+
+}

core-java-modules/pom.xml

@@ -62,6 +62,7 @@
         <module>core-java-exceptions-4</module>
         <module>core-java-function</module>
         <module>core-java-functional</module>
+        <module>core-java-hex</module>
         <module>core-java-io</module>
         <module>core-java-io-2</module>
         <module>core-java-io-3</module>