Merge pull request #621 from eugenp/grzegorz_char_to_string

Add code examples for Char to String mini-article

core-java-8/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_shouldConvertToString1() throws Exception {
+        final char givenChar = 'x';
+
+        final String result = String.valueOf(givenChar);
+
+        assertThat(result).isEqualTo("x");
+    }
+
+    @Test
+    public void givenChar_shouldConvertToString2() throws Exception {
+        final char givenChar = 'x';
+
+        final String result = Character.toString(givenChar);
+
+        assertThat(result).isEqualTo("x");
+    }
+
+    @Test
+    public void givenChar_shouldConvertToString3() throws Exception {
+        final char givenChar = 'x';
+
+        final String result = new Character(givenChar).toString();
+
+        assertThat(result).isEqualTo("x");
+    }
+
+    @Test
+    public void givenChar_shouldConvertToString4() throws Exception {
+        final char givenChar = 'x';
+
+        final String result = givenChar + "";
+
+        assertThat(result).isEqualTo("x");
+    }
+
+    @Test
+    public void givenChar_shouldConvertToString5() throws Exception {
+        final char givenChar = 'x';
+
+        final String result = String.format("%c", givenChar);
+
+        assertThat(result).isEqualTo("x");
+    }
+}