diff --git a/knoda/src/B079_CompatibilityCheck.java b/knoda/src/B079_CompatibilityCheck.java
new file mode 100644
index 0000000000000000000000000000000000000000..b2a0c8b05c2bfa2694cc5d85f79468b150d45f67
--- /dev/null
+++ b/knoda/src/B079_CompatibilityCheck.java
@@ -0,0 +1,63 @@
+package hellojunit;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Scanner;
+
+public class B079_CompatibilityCheck {
+
+	public static void main(String[] args) {
+		final Scanner scan = new Scanner(System.in);
+		final String name1 = scan.next();
+		final String name2 = scan.next();
+		final CompatibilityCheck compatibilityCheck = new CompatibilityCheck();
+		// 2人の相性を取得する
+		final int compatibilityDegree = compatibilityCheck.getCompatibilityDegree(name1, name2);
+		System.out.println(compatibilityDegree);
+		scan.close();
+	}
+
+}
+
+class CompatibilityCheck {
+	private final int MAX_NUMBER = 101; // numberListの要素の最大値
+	
+	/**
+	 * 2人の相性を取得するメソッド
+	 * @param name1 : 名前
+	 * @param name2 : 名前
+	 * @return Math.max(compatibilityDegree1, compatibilityDegree2) : 2人の相性
+	 */
+	public int getCompatibilityDegree(final String name1, final String name2) {
+		final int compatibilityDegree1 = calcCompatibilityDegree(name1 + name2);
+		final int compatibilityDegree2 = calcCompatibilityDegree(name2 + name1);
+		
+		return Math.max(compatibilityDegree1, compatibilityDegree2);
+	}
+	
+	/**
+	 * 2人の相性を算出するメソッド
+	 * @param concatName : 2人の名前を連結した文字列
+	 * @return numberList.get(0) : 2人の相性
+	 */
+	private int calcCompatibilityDegree(final String concatName) {
+		final List<Integer> numberList = new ArrayList<Integer>();
+
+		// 文字を数字に変換する
+		for (int i = 0; i < concatName.length(); i++) {
+			numberList.add(concatName.charAt(i) - 'a' + 1);
+		}
+
+		// 2人の相性を算出する
+		while (numberList.size() > 1) {
+			for (int i = 0; i < numberList.size() - 1; i++) {
+				numberList.set(i, numberList.get(i) + numberList.get(i + 1));
+				if (numberList.get(i) > MAX_NUMBER) {
+					numberList.set(i, numberList.get(i) - MAX_NUMBER);
+				}
+			}
+			numberList.remove(numberList.size() - 1);
+		}
+		return numberList.get(0);
+	}
+}
diff --git a/knoda/test/B079_CompatibilityCheckTest.java b/knoda/test/B079_CompatibilityCheckTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..a78d8a5c2e7715616923e2b768aa9879c85c1073
--- /dev/null
+++ b/knoda/test/B079_CompatibilityCheckTest.java
@@ -0,0 +1,58 @@
+package hellojunit;
+
+import static org.hamcrest.CoreMatchers.*;
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+/**
+ * @author knoda
+ *
+ */
+public class B079_CompatibilityCheckTest {
+	
+	@Test
+	public void 名前がそれぞれa_bのとき3が出力されるテスト() {
+		final String name1 = "a";
+		final String name2 = "b";
+		final CompatibilityCheck compatibilityCheck = new CompatibilityCheck();
+		final int expected = 3;
+		final int actual = compatibilityCheck.getCompatibilityDegree(name1, name2);
+		assertThat(actual, is(expected));
+	}
+	
+	
+	@Test
+	public void 名前がそれぞれ1000文字のときのテスト() {
+		String name1 = "";
+		String name2 = "";
+		for (int i = 0; i < 1000; i++) {
+			name1 += "a";
+		}
+		for (int i = 0; i < 1000; i++) {
+			name2 += "b";
+		}
+		final CompatibilityCheck compatibilityCheck = new CompatibilityCheck();
+		final int expected = 26;
+		final int actual = compatibilityCheck.getCompatibilityDegree(name1, name2);
+		assertThat(actual, is(expected));
+	}
+
+	
+	/**
+	 * 名前の順序を入れ替えても相性の大きい方が出力される
+	 * つまり、出力される値は変わらない
+	 */
+	@Test
+	public void pa_izaと入力してもiza_paと入力してもともに83と出力されるテスト() {
+		final String name1 = "pa";
+		final String name2 = "iza";
+		final CompatibilityCheck compatibilityCheck = new CompatibilityCheck();
+		final int expected = 83;
+		int actual1 = compatibilityCheck.getCompatibilityDegree(name1, name2);
+		assertThat(actual1, is(expected));
+		
+		int actual2 = compatibilityCheck.getCompatibilityDegree(name2, name1);
+		assertThat(actual1, is(actual2));
+	}
+}