add value of comparision

core-java-modules/core-java-string-conversions-3/README.md

@@ -0,0 +1,6 @@
+## Java String Conversions
+
+This module contains articles about string conversions from/to another type.
+
+### Relevant Articles:
+- [String.valueOf() vs. Object.toString()](https://www.baeldung.com/string-valueof-vs-object-tostring/)

core-java-modules/core-java-string-conversions-3/pom.xml

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+<?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-string-conversions-3</artifactId>
+    <name>core-java-string-conversions-3</name>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung.core-java-modules</groupId>
+        <artifactId>core-java-modules</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+    </parent>
+
+    <build>
+        <finalName>core-java-string-conversions-3</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+
+
+</project>

core-java-modules/core-java-string-conversions-3/src/main/java/com/baeldung/valueofcomparison/Student.java

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+package com.baeldung.valueofcomparison;
+
+public class Student {
+
+    public String name;
+    public int age;
+
+    public Student(String name, int age) {
+        this.name = name;
+        this.age = age;
+    }
+
+    @Override
+    public String toString() {
+        return "Student(" + name + ", age " + age + ')';
+    }
+}

core-java-modules/core-java-string-conversions-3/src/test/java/com/baeldung/valueofcomparison/ValueOfUnitTest.java

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+package com.baeldung.valueofcomparison;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+import org.junit.jupiter.api.Test;
+
+public class ValueOfUnitTest {
+
+    @Test
+    void whenCallingValueOf_thenMapToString() {
+        char[] exampleCharArray = {'a', 'b', 'c'};
+        Student alice = new Student("Alice", 5);
+
+        assertEquals("true", String.valueOf(true));
+        assertEquals("a", String.valueOf('a'));
+        assertEquals("abc", String.valueOf(exampleCharArray));
+        assertEquals("123.935", String.valueOf(123.935));
+        assertEquals("2222.3", String.valueOf(2222.3f));
+        assertEquals("2222", String.valueOf(2222));
+        assertEquals("123456789", String.valueOf(123456789L));
+        assertEquals("123456789", String.valueOf(123456789L));
+        assertEquals("Student(Alice, age 5)", String.valueOf(alice));
+    }
+}

core-java-modules/pom.xml

@@ -134,6 +134,7 @@
         <module>core-java-string-apis-2</module>
         <module>core-java-string-conversions</module>
         <module>core-java-string-conversions-2</module>
+        <module>core-java-string-conversions-3</module>
         <module>core-java-string-operations</module>
         <module>core-java-string-operations-2</module>
         <module>core-java-regex</module>