diff --git a/src/fr/devinsy/strings/StringList.java b/src/fr/devinsy/strings/StringList.java
index ce19d8d..e8212b0 100644
--- a/src/fr/devinsy/strings/StringList.java
+++ b/src/fr/devinsy/strings/StringList.java
@@ -1963,6 +1963,32 @@ public class StringList extends ArrayList<String> implements CharSequence, Appen
 		return result;
 	}
 
+	/**
+	 * Returns a string containing the concatenation of the strings of this list.
+	 * Between each string of this list, a separator argument string is concatenated
+	 * too.
+	 * 
+	 * @param separator
+	 *            the separator
+	 * @return the string
+	 */
+	public String toStringSeparatedBy(final Character separator)
+	{
+		String result;
+
+		if (separator == null)
+		{
+			result = toStringSeparatedBy("");
+		}
+		else
+		{
+			result = toStringSeparatedBy("" + separator);
+		}
+
+		//
+		return result;
+	}
+
 	/**
 	 * Returns a string containing the concatenation of the strings of this list.
 	 * Between each string of this list, a separator argument string is concatenated
diff --git a/src/fr/devinsy/strings/StringsUtils.java b/src/fr/devinsy/strings/StringsUtils.java
index 42dba62..282579a 100644
--- a/src/fr/devinsy/strings/StringsUtils.java
+++ b/src/fr/devinsy/strings/StringsUtils.java
@@ -1498,6 +1498,32 @@ public class StringsUtils
 		return result;
 	}
 
+	/**
+	 * To string separated by.
+	 * 
+	 * @param source
+	 *            the source
+	 * @param separator
+	 *            the separator
+	 * @return the string
+	 */
+	public static String toStringSeparatedBy(final StringList source, final Character separator)
+	{
+		String result;
+
+		if (source == null)
+		{
+			result = null;
+		}
+		else
+		{
+			result = source.toStringSeparatedBy(separator);
+		}
+
+		//
+		return result;
+	}
+
 	/**
 	 * To string separated by.
 	 * 
diff --git a/test/fr/devinsy/strings/StringListTest.java b/test/fr/devinsy/strings/StringListTest.java
index fcedf19..d64f8c4 100644
--- a/test/fr/devinsy/strings/StringListTest.java
+++ b/test/fr/devinsy/strings/StringListTest.java
@@ -758,4 +758,48 @@ public class StringListTest
 		//
 		this.logger.debug("===== test done.");
 	}
+
+	/**
+	 * Test to string separated by 01.
+	 */
+	@Test
+	public void testToStringSeparatedBy01()
+	{
+		//
+		this.logger.debug("===== test starting...");
+
+		//
+		{
+			StringList source = new StringList("aaa").append("bbb").append("ccc");
+			String target = source.toStringSeparatedBy((String) null);
+			Assert.assertEquals("aaabbbccc", target);
+		}
+
+		{
+			StringList source = new StringList("aaa").append("bbb").append("ccc");
+			String target = source.toStringSeparatedBy("");
+			Assert.assertEquals("aaabbbccc", target);
+		}
+
+		{
+			StringList source = new StringList("aaa").append("bbb").append("ccc");
+			String target = source.toStringSeparatedBy("<->");
+			Assert.assertEquals("aaa<->bbb<->ccc", target);
+		}
+
+		{
+			StringList source = new StringList("aaa").append("bbb").append("ccc");
+			String target = source.toStringSeparatedBy((Character) null);
+			Assert.assertEquals("aaabbbccc", target);
+		}
+
+		{
+			StringList source = new StringList("aaa").append("bbb").append("ccc");
+			String target = source.toStringSeparatedBy('|');
+			Assert.assertEquals("aaa|bbb|ccc", target);
+		}
+
+		//
+		this.logger.debug("===== test done.");
+	}
 }