isogram : add to track

config.json

@@ -3,6 +3,7 @@
   "language": "Java",
   "repository": "https://github.com/exercism/xjava",
   "active": true,
+
   "exercises": [
     {
       "slug": "hello-world",
@@ -313,6 +314,11 @@
       "slug": "ocr-numbers",
       "difficulty": 1,
       "topics": []
+    },
+    {
+      "slug": "isogram",
+      "difficulty": 1,
+      "topics": []
     }
   ],
   "deprecated": [
@@ -335,3 +341,4 @@
     "say"
   ]
 }
+

exercises/isogram/build.gradle

@@ -0,0 +1,17 @@
+apply plugin: "java"
+apply plugin: "eclipse"
+apply plugin: "idea"
+
+repositories {
+  mavenCentral()
+}
+
+dependencies {
+  testCompile "junit:junit:4.12"
+}
+test {
+  testLogging {
+    exceptionFormat = 'full'
+    events = ["passed", "failed", "skipped"]
+  }
+}

exercises/isogram/src/example/java/Isogram.java

@@ -0,0 +1,37 @@
+package exemple;
+
+import java.util.HashSet;
+import java.util.Set;
+import static java.util.Arrays.stream;
+import static java.util.stream.Collectors.joining;
+
+public class Isogram {
+
+	private String word;
+
+	public Isogram(String word){
+		this.word = word;
+	}
+
+	public boolean isogramChecker(){
+
+		Set<Character> charSet = new HashSet<>();
+
+		String[] words = this.word.split(" ");
+		String newWord = concat(words);
+
+		words = newWord.split("-");
+		newWord = concat(words).toLowerCase();
+
+		for(int i = 0; i < newWord.length(); i++){
+			charSet.add(newWord.charAt(i));
+		}
+
+		return charSet.size() == newWord.length();
+	}
+
+	private String concat(String[] words){
+		return stream(words).collect(joining());
+	}
+
+}

exercises/isogram/src/test/java/IsogramTest.java

@@ -0,0 +1,69 @@
+package test;
+
+import static org.junit.Assert.*;
+import org.junit.Test;
+import exemple.Isogram;
+
+public class IsogramTest {
+
+	@Test
+	public void testIsogram() {
+		Isogram iso = new Isogram("duplicates");
+		assertTrue(iso.isogramChecker());
+	}
+
+	@Test
+	public void testNotIsogram() {
+		Isogram iso = new Isogram("eleven");
+		assertFalse(iso.isogramChecker());
+	}
+
+	@Test
+	public void testMediumLongIsogram() {
+		Isogram iso = new Isogram("subdermatoglyphic");
+		assertTrue(iso.isogramChecker());
+	}
+
+	@Test
+	public void testCaseInsensitive() {
+		Isogram iso = new Isogram("Alphabet");
+		assertFalse(iso.isogramChecker());
+	}
+
+	@Test
+	public void testIsogramWithHyphen() {
+		Isogram iso = new Isogram("thumbscrew-japingly");
+		assertTrue(iso.isogramChecker());
+	}
+
+	@Test
+	public void testIgnoresMultipleHyphens() {
+		Isogram iso = new Isogram("Hjelmqvist-Gryb-Zock-Pfund-Wax");
+		assertTrue(iso.isogramChecker());
+	}
+
+	@Test
+	public void testWorksWithGermanLetters() {
+		Isogram iso = new Isogram("Heizölrückstoßabdämpfung");
+		assertTrue(iso.isogramChecker());
+	}
+
+	@Test
+	public void testIgnoresSpaces() {
+		Isogram iso = new Isogram("the quick brown fox");
+		assertFalse(iso.isogramChecker());
+	}
+
+	@Test
+	public void testIgnoresSpaces2() {
+		Isogram iso = new Isogram("Emily Jung Schwartzkopf");
+		assertTrue(iso.isogramChecker());
+	}
+
+	@Test
+	public void testDuplicateAccentedLetters() {
+		Isogram iso = new Isogram("éléphant");
+		assertFalse(iso.isogramChecker());
+	}
+
+}

exercises/settings.gradle

@@ -23,6 +23,7 @@ include 'grade-school'
 include 'hamming'
 include 'hexadecimal'
 include 'hello-world'
+include 'isogram'
 include 'largest-series-product'
 include 'linked-list'
 include 'list-ops'