Move CharToString examples

core-java/README.md

@@ -22,3 +22,4 @@
 - [Java 8 Collectors](http://www.baeldung.com/java-8-collectors)
 - [Guide To CompletableFuture](http://www.baeldung.com/java-completablefuture)
 - [Guide to Java 8’s Functional Interfaces](http://www.baeldung.com/java-8-functional-interfaces)
+- [Convert char to String in Java](http://www.baeldung.com/java-convert-char-to-string)

core-java/src/test/java/com/baeldung/CharToStringTest.java

@@ -0,0 +1,53 @@
+package com.baeldung;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class CharToStringTest {
+
+    @Test
+    public void givenChar_whenCallingStringValueOf_shouldConvertToString(){
+        final char givenChar = 'x';
+
+        final String result = String.valueOf(givenChar);
+
+        assertThat(result).isEqualTo("x");
+    }
+
+    @Test
+    public void givenChar_whenCallingToStringOnCharacter_shouldConvertToString(){
+        final char givenChar = 'x';
+
+        final String result = Character.toString(givenChar);
+
+        assertThat(result).isEqualTo("x");
+    }
+
+    @Test
+    public void givenChar_whenCallingCharacterConstructor_shouldConvertToString3(){
+        final char givenChar = 'x';
+
+        final String result = new Character(givenChar).toString();
+
+        assertThat(result).isEqualTo("x");
+    }
+
+    @Test
+    public void givenChar_whenConcatenated_shouldConvertToString4(){
+        final char givenChar = 'x';
+
+        final String result = givenChar + "";
+
+        assertThat(result).isEqualTo("x");
+    }
+
+    @Test
+    public void givenChar_whenFormated_shouldConvertToString5(){
+        final char givenChar = 'x';
+
+        final String result = String.format("%c", givenChar);
+
+        assertThat(result).isEqualTo("x");
+    }
+}