diff --git a/Exam/Sd1/Diff/Diff/.gitignore b/Exam/Sd1/Diff/Diff/.gitignore
deleted file mode 100644
index 4e247eee2103b4d4a35eba38166587fee1391f0e..0000000000000000000000000000000000000000
--- a/Exam/Sd1/Diff/Diff/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-/.settings
-/target
-/.classpath
-/.project
diff --git a/Exam/Sd1/Diff/Diff/pom.xml b/Exam/Sd1/Diff/Diff/pom.xml
deleted file mode 100644
index 8156c42e224a2acc95c6fb9675bf3e7a05617fe6..0000000000000000000000000000000000000000
--- a/Exam/Sd1/Diff/Diff/pom.xml
+++ /dev/null
@@ -1,36 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
- <modelVersion>4.0.0</modelVersion>
-
- <groupId>de.hdm-stuttgart.de.sd1</groupId>
- <artifactId>diff</artifactId>
- <version>1.0</version>
- <packaging>jar</packaging>
-
- <name>Diff</name>
-
- <build>
- <plugins>
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-compiler-plugin</artifactId>
- <version>3.2</version>
- <configuration>
- <source>1.8</source>
- <target>1.8</target>
- </configuration>
- </plugin>
-
- </plugins>
- </build>
- <dependencies>
-
- <dependency>
- <groupId>junit</groupId>
- <artifactId>junit</artifactId>
- <version>4.12</version>
- <scope>test</scope>
- </dependency>
-
-</dependencies>
-</project>
diff --git a/Exam/Sd1/Diff/Diff/src/main/java/de/hdm_stuttgart/mi/sd1/store/Diff.java b/Exam/Sd1/Diff/Diff/src/main/java/de/hdm_stuttgart/mi/sd1/store/Diff.java
deleted file mode 100644
index 1d0e1657dbb2186b612d7962e6c6ccc5cd4ff292..0000000000000000000000000000000000000000
--- a/Exam/Sd1/Diff/Diff/src/main/java/de/hdm_stuttgart/mi/sd1/store/Diff.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package de.hdm_stuttgart.mi.sd1.store;
-
-/**
- * Additional helper methods
- *
- */
-public class Diff {
- /**
- * Compute the absolute value of the biggest difference between
- * two of three given numbers a, b, and c
- *
- * Examples:
- *
- * a == 1, b == 2, c ==10, the biggest absolute difference is 10 - 1 = 9
- * a == 4, b ==10, c == 1, the biggest absolute difference is 10 - 1 = 9
- * a ==-3, b == 4, c == 3, the biggest absolute difference is 4 - (-3) = 7
- *
- *
- * @param a The first of three parameters
- * @param b The second of three parameters
- * @param c The third of three parameters
- * @return The absolute value of the biggest difference between two arbitrary parameters
- */
- public static int maxDiff(int a, int b, int c) {
- return 0; // TODO: Implementation to be completed
- }
-}
diff --git a/Exam/Sd1/Diff/Diff/src/main/java/de/hdm_stuttgart/mi/sd1/store/package-info.java b/Exam/Sd1/Diff/Diff/src/main/java/de/hdm_stuttgart/mi/sd1/store/package-info.java
deleted file mode 100644
index 24b57ed19d152fecbbdb840c0e443ee2064b10dc..0000000000000000000000000000000000000000
--- a/Exam/Sd1/Diff/Diff/src/main/java/de/hdm_stuttgart/mi/sd1/store/package-info.java
+++ /dev/null
@@ -1,5 +0,0 @@
-/**
- * Dealing with difference values
- *
- */
-package de.hdm_stuttgart.mi.sd1.store;
\ No newline at end of file
diff --git a/Exam/Sd1/Diff/Diff/src/test/java/de/hdm_stuttgart/mi/sd1/fraction/DiffTest.java b/Exam/Sd1/Diff/Diff/src/test/java/de/hdm_stuttgart/mi/sd1/fraction/DiffTest.java
deleted file mode 100644
index 0af65e704f6bb8374964206960b99d09b79553e8..0000000000000000000000000000000000000000
--- a/Exam/Sd1/Diff/Diff/src/test/java/de/hdm_stuttgart/mi/sd1/fraction/DiffTest.java
+++ /dev/null
@@ -1,32 +0,0 @@
-package de.hdm_stuttgart.mi.sd1.fraction;
-
-import static org.junit.Assert.*;
-
-import org.junit.Test;
-
-import de.hdm_stuttgart.mi.sd1.store.Diff;
-
-
-/**
- * Testing max diff function
- *
- */
-public class DiffTest {
-
- /**
- * Test absolute maximal difference
- */
-
- /* TODO: Remove me to activate testing
- @Test
- */
- public void testDiff() {
- assertEquals(0, Diff.maxDiff(0, 0, 0));
- assertEquals(0, Diff.maxDiff(1, 1, 1));
- assertEquals(2, Diff.maxDiff(1, 2, 3));
- assertEquals(3, Diff.maxDiff(4, 1, 4));
- assertEquals(3, Diff.maxDiff(-1, -2, -4));
- assertEquals(1, Diff.maxDiff(2, 2, 3));
-
- }
-}
diff --git a/Exam/Sd1/Diff/DiffSolution/.gitignore b/Exam/Sd1/Diff/DiffSolution/.gitignore
deleted file mode 100644
index 4e247eee2103b4d4a35eba38166587fee1391f0e..0000000000000000000000000000000000000000
--- a/Exam/Sd1/Diff/DiffSolution/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-/.settings
-/target
-/.classpath
-/.project
diff --git a/Exam/Sd1/Diff/DiffSolution/pom.xml b/Exam/Sd1/Diff/DiffSolution/pom.xml
deleted file mode 100644
index 2791378daead81a7fe638fde2355252ec54f6903..0000000000000000000000000000000000000000
--- a/Exam/Sd1/Diff/DiffSolution/pom.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
- <modelVersion>4.0.0</modelVersion>
-
- <groupId>de.hdm-stuttgart.de.sd1</groupId>
- <artifactId>diff</artifactId>
- <version>2.0</version>
- <packaging>jar</packaging>
-
- <name>Diff</name>
-
- <build>
- <plugins>
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-compiler-plugin</artifactId>
- <version>3.2</version>
- <configuration>
- <source>1.8</source>
- <target>1.8</target>
- </configuration>
- </plugin>
-
- </plugins>
- </build>
-
- <dependencies>
-
- <dependency>
- <groupId>junit</groupId>
- <artifactId>junit</artifactId>
- <version>4.12</version>
- <scope>test</scope>
- </dependency>
-
-</dependencies>
-</project>
diff --git a/Exam/Sd1/Diff/DiffSolution/src/main/java/de/hdm_stuttgart/mi/sd1/store/Diff.java b/Exam/Sd1/Diff/DiffSolution/src/main/java/de/hdm_stuttgart/mi/sd1/store/Diff.java
deleted file mode 100644
index d4336361c341b2f25f4c6314327e534f3f0b4533..0000000000000000000000000000000000000000
--- a/Exam/Sd1/Diff/DiffSolution/src/main/java/de/hdm_stuttgart/mi/sd1/store/Diff.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package de.hdm_stuttgart.mi.sd1.store;
-
-/**
- * Additional helper methods
- *
- */
-public class Diff {
- /**
- * Compute the absolute value of the biggest difference between
- * two of three given numbers a, b, and c
- *
- * Examples:
- *
- * a == 1, b == 2, c ==10, the biggest absolute difference is 10 - 1 = 9
- * a == 4, b ==10, c == 1, the biggest absolute difference is 10 - 1 = 9
- * a ==-3, b == 4, c == 3, the biggest absolute difference is 4 - (-3) = 7
- *
- *
- * @param a The first of three parameters
- * @param b The second of three parameters
- * @param c The third of three parameters
- * @return The absolute value of the biggest difference between two arbitrary parameters
- */
- public static int maxDiff(int a, int b, int c) {
- final int ab = Math.abs(a - b),
- ac = Math.abs(a - c),
- bc = Math.abs(b - c);
- return Math.max(ab, Math.max(ac, bc));
- }
-}
diff --git a/Exam/Sd1/Diff/DiffSolution/src/main/java/de/hdm_stuttgart/mi/sd1/store/package-info.java b/Exam/Sd1/Diff/DiffSolution/src/main/java/de/hdm_stuttgart/mi/sd1/store/package-info.java
deleted file mode 100644
index 94590c084ee82bbde5b9d271ef9c673393626ae6..0000000000000000000000000000000000000000
--- a/Exam/Sd1/Diff/DiffSolution/src/main/java/de/hdm_stuttgart/mi/sd1/store/package-info.java
+++ /dev/null
@@ -1,5 +0,0 @@
-/**
- * Dealing with integer stores.
- *
- */
-package de.hdm_stuttgart.mi.sd1.store;
\ No newline at end of file
diff --git a/Exam/Sd1/Diff/DiffSolution/src/test/java/de/hdm_stuttgart/mi/sd1/fraction/DiffTest.java b/Exam/Sd1/Diff/DiffSolution/src/test/java/de/hdm_stuttgart/mi/sd1/fraction/DiffTest.java
deleted file mode 100644
index 211dfddcd4523215e35446854f01ee0beca7a4c4..0000000000000000000000000000000000000000
--- a/Exam/Sd1/Diff/DiffSolution/src/test/java/de/hdm_stuttgart/mi/sd1/fraction/DiffTest.java
+++ /dev/null
@@ -1,29 +0,0 @@
-package de.hdm_stuttgart.mi.sd1.fraction;
-
-import static org.junit.Assert.*;
-
-import org.junit.Test;
-
-import de.hdm_stuttgart.mi.sd1.store.Diff;
-
-
-/**
- * Testing max diff function
- *
- */
-public class DiffTest {
-
- /**
- * Test absolute maximal difference
- */
- @Test
- public void testDiff() {
- assertEquals(0, Diff.maxDiff(0, 0, 0));
- assertEquals(0, Diff.maxDiff(1, 1, 1));
- assertEquals(2, Diff.maxDiff(1, 2, 3));
- assertEquals(3, Diff.maxDiff(4, 1, 4));
- assertEquals(3, Diff.maxDiff(-1, -2, -4));
- assertEquals(1, Diff.maxDiff(2, 2, 3));
-
- }
-}
diff --git a/Exam/Sd1/MaxArrayDiff/Solution/.gitignore b/Exam/Sd1/MaxArrayDiff/Solution/.gitignore
deleted file mode 100644
index 4e247eee2103b4d4a35eba38166587fee1391f0e..0000000000000000000000000000000000000000
--- a/Exam/Sd1/MaxArrayDiff/Solution/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-/.settings
-/target
-/.classpath
-/.project
diff --git a/Exam/Sd1/MaxArrayDiff/Solution/pom.xml b/Exam/Sd1/MaxArrayDiff/Solution/pom.xml
deleted file mode 100644
index 325bd24cbada8e07a4be86e5e636a6223f74442b..0000000000000000000000000000000000000000
--- a/Exam/Sd1/MaxArrayDiff/Solution/pom.xml
+++ /dev/null
@@ -1,37 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
- <modelVersion>4.0.0</modelVersion>
-
- <groupId>de.hdm-stuttgart.de.sd1</groupId>
- <artifactId>maxarraydiff</artifactId>
- <version>2.0</version>
- <packaging>jar</packaging>
-
- <name>MaxArrayDiff</name>
- <build>
- <plugins>
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-compiler-plugin</artifactId>
- <version>3.2</version>
- <configuration>
- <source>1.8</source>
- <target>1.8</target>
- </configuration>
- </plugin>
-
- </plugins>
- </build>
-
- <dependencies>
-
- <dependency>
- <groupId>junit</groupId>
- <artifactId>junit</artifactId>
- <version>4.12</version>
- <scope>test</scope>
- </dependency>
-
- </dependencies>
-
-</project>
diff --git a/Exam/Sd1/MaxArrayDiff/Solution/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/Calc.java b/Exam/Sd1/MaxArrayDiff/Solution/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/Calc.java
deleted file mode 100644
index eb1e4a4bb25b8276c6c953880a7f1cbee59bc9a1..0000000000000000000000000000000000000000
--- a/Exam/Sd1/MaxArrayDiff/Solution/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/Calc.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package de.hdm_stuttgart.mi.sd1.maxarraydiff;
-
-/**
- * Array calculations.
- *
- */
-public class Calc {
-
- /**
- * Calculate the maximum of all mutual absolute
- * difference values. Example:
- *
- * values = {1, 7, 2, -3, 4}
- *
- * The maximum is 7 - (-3) = 10
- *
- *
- * @param values An unordered list of integer values
- * @return The number of vowels being contained in s.
- */
- public static int maxArrayDiff (final int [] values) {
-
- int maxDiff = 0;
- for (int i = 0; i < values.length; i++) {
- for (int j = i + 1; j < values.length; j++) {
- if (maxDiff < Math.abs(values[i] -values[j])) {
- maxDiff = Math.abs(values[i] -values[j]);
- }
- }
- }
- return maxDiff;
- }
-}
diff --git a/Exam/Sd1/MaxArrayDiff/Solution/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/package-info.java b/Exam/Sd1/MaxArrayDiff/Solution/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/package-info.java
deleted file mode 100644
index caccbbf6b1a31ade531cea571e2c75c823ffb6db..0000000000000000000000000000000000000000
--- a/Exam/Sd1/MaxArrayDiff/Solution/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/package-info.java
+++ /dev/null
@@ -1,5 +0,0 @@
-/**
- * Computing array value differences
- *
- */
-package de.hdm_stuttgart.mi.sd1.maxarraydiff;
\ No newline at end of file
diff --git a/Exam/Sd1/MaxArrayDiff/Solution/src/test/java/de/hdm_stuttgart/mi/sd1/fraction/CalcTest.java b/Exam/Sd1/MaxArrayDiff/Solution/src/test/java/de/hdm_stuttgart/mi/sd1/fraction/CalcTest.java
deleted file mode 100644
index acca1325c9957db507ad98b5d3039f0dffb5ee3b..0000000000000000000000000000000000000000
--- a/Exam/Sd1/MaxArrayDiff/Solution/src/test/java/de/hdm_stuttgart/mi/sd1/fraction/CalcTest.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package de.hdm_stuttgart.mi.sd1.fraction;
-
-import org.junit.Assert;
-import org.junit.Test;
-
-import de.hdm_stuttgart.mi.sd1.maxarraydiff.Calc;
-
-@SuppressWarnings("javadoc")
-public class CalcTest {
-
- @Test public void testZero() {
- Assert.assertEquals(0, Calc.maxArrayDiff(new int[]{}));
- }
-
- @Test public void testOne() {
- Assert.assertEquals(0, Calc.maxArrayDiff(new int[]{-3}));
- }
-
- @Test public void testTwo() {
- Assert.assertEquals(4, Calc.maxArrayDiff(new int[]{1, -3}));
- }
-
- @Test public void testThree() {
- Assert.assertEquals(13, Calc.maxArrayDiff(new int[]{1, 4, -9}));
- }
-
- @Test public void testMulti() {
- Assert.assertEquals(17, Calc.maxArrayDiff(new int[]{ -1, 0, -5, 3, 5, 12, 8}));
- }
-
-
-
-}
diff --git a/Exam/Sd1/MaxArrayDiff/Test/.gitignore b/Exam/Sd1/MaxArrayDiff/Test/.gitignore
deleted file mode 100644
index 4e247eee2103b4d4a35eba38166587fee1391f0e..0000000000000000000000000000000000000000
--- a/Exam/Sd1/MaxArrayDiff/Test/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-/.settings
-/target
-/.classpath
-/.project
diff --git a/Exam/Sd1/MaxArrayDiff/Test/pom.xml b/Exam/Sd1/MaxArrayDiff/Test/pom.xml
deleted file mode 100644
index 4b0704132b82f744453668aa00b54ba15812afa1..0000000000000000000000000000000000000000
--- a/Exam/Sd1/MaxArrayDiff/Test/pom.xml
+++ /dev/null
@@ -1,39 +0,0 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
- <modelVersion>4.0.0</modelVersion>
-
- <groupId>de.hdm-stuttgart.de.sd1</groupId>
- <artifactId>maxarraydiff</artifactId>
- <version>1.0</version>
- <packaging>jar</packaging>
-
- <name>MaxArrayDiff</name>
-
- <build>
- <plugins>
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-compiler-plugin</artifactId>
- <version>3.2</version>
- <configuration>
- <source>1.8</source>
- <target>1.8</target>
- </configuration>
- </plugin>
-
- </plugins>
- </build>
-
- <dependencies>
-
- <dependency>
- <groupId>junit</groupId>
- <artifactId>junit</artifactId>
- <version>4.12</version>
- <scope>test</scope>
- </dependency>
-
- </dependencies>
-
-
-</project>
diff --git a/Exam/Sd1/MaxArrayDiff/Test/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/Calc.java b/Exam/Sd1/MaxArrayDiff/Test/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/Calc.java
deleted file mode 100644
index 127e65e60a6202151480cdff8f1e73e91b875a2a..0000000000000000000000000000000000000000
--- a/Exam/Sd1/MaxArrayDiff/Test/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/Calc.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package de.hdm_stuttgart.mi.sd1.maxarraydiff;
-
-/**
- * Array calculations.
- *
- */
-public class Calc {
-
- /**
- * Calculate the maximum of all mutual absolute
- * difference values. Example:
- *
- * values = {1, 7, 2, -3, 4}
- *
- * The maximum is 7 - (-3) = 10
- *
- *
- * @param values An unordered list of integer values
- * @return The number of vowels being contained in s.
- */
- public static int maxArrayDiff (final int [] values) {
-
- return 0; // TODO
- }
-}
diff --git a/Exam/Sd1/MaxArrayDiff/Test/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/package-info.java b/Exam/Sd1/MaxArrayDiff/Test/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/package-info.java
deleted file mode 100644
index caccbbf6b1a31ade531cea571e2c75c823ffb6db..0000000000000000000000000000000000000000
--- a/Exam/Sd1/MaxArrayDiff/Test/src/main/java/de/hdm_stuttgart/mi/sd1/maxarraydiff/package-info.java
+++ /dev/null
@@ -1,5 +0,0 @@
-/**
- * Computing array value differences
- *
- */
-package de.hdm_stuttgart.mi.sd1.maxarraydiff;
\ No newline at end of file
diff --git a/Exam/Sd1/MaxArrayDiff/Test/src/test/java/de/hdm_stuttgart/mi/sd1/CalcTest.java b/Exam/Sd1/MaxArrayDiff/Test/src/test/java/de/hdm_stuttgart/mi/sd1/CalcTest.java
deleted file mode 100644
index 5a3fec0ea5ff9b989fdccf9e471030ce96cee889..0000000000000000000000000000000000000000
--- a/Exam/Sd1/MaxArrayDiff/Test/src/test/java/de/hdm_stuttgart/mi/sd1/CalcTest.java
+++ /dev/null
@@ -1,37 +0,0 @@
-package de.hdm_stuttgart.mi.sd1;
-
-import org.junit.Assert;
-import org.junit.Test;
-
-import de.hdm_stuttgart.mi.sd1.maxarraydiff.Calc;
-
-@SuppressWarnings("javadoc")
-public class CalcTest {
-
- // TODO: uncomment the following @test annotations
-
- // TODO @Test
- public void testZero() {
- Assert.assertEquals(0, Calc.maxArrayDiff(new int[]{}));
- }
-
- // TODO @Test
- public void testOne() {
- Assert.assertEquals(0, Calc.maxArrayDiff(new int[]{-3}));
- }
-
- // TODO @Test
- public void testTwo() {
- Assert.assertEquals(4, Calc.maxArrayDiff(new int[]{1, -3}));
- }
-
- // TODO @Test
- public void testThree() {
- Assert.assertEquals(13, Calc.maxArrayDiff(new int[]{1, 4, -9}));
- }
-
- // TODO @Test
- public void testMulti() {
- Assert.assertEquals(17, Calc.maxArrayDiff(new int[]{ -1, 0, -5, 3, 5, 12, 8}));
- }
-}