small change

src/test/uebung/uebung05/logistics/ManagerTest.java

@@ -1,13 +1,18 @@
-package logistics;
+package test.uebung.uebung05.logistics;
+
+import uebung05.logistics.Helicopter;
+import uebung05.logistics.Manager;
+import uebung05.logistics.Tank;
+import uebung05.logistics.material.BulletBelts;
+import uebung05.logistics.material.Grease;
+import uebung05.logistics.material.LiterDiesel;
+import uebung05.logistics.material.MetGallonsKerosene;
+import uebung05.logistics.material.Oil;
+import uebung05.logistics.material.RocketPods;
+import uebung05.logistics.material.ShellBatches;
+import uebung05.logistics.quantities.NeedCollector;
+
 
-import logistics.material.BulletBelts;
-import logistics.material.Grease;
-import logistics.material.LiterDiesel;
-import logistics.material.MetGallonsKerosene;
-import logistics.material.Oil;
-import logistics.material.RocketPods;
-import logistics.material.ShellBatches;
-import logistics.quantities.NeedCollector;
 import org.junit.Before;
 import org.junit.Test;
 

src/test/uebung/uebung05/logistics/storage/IntStorageTest.java

@@ -1,6 +1,8 @@
-package logistics.storage;
+package test.uebung.uebung05.logistics.storage;
+
+import uebung05.logistics.material.Oil;
+import uebung05.logistics.storage.IntStorage;
 
-import logistics.material.Oil;
 import org.junit.Before;
 import org.junit.Test;
 

src/test/uebung/uebung09/collection/SetTest.java

@@ -0,0 +1,76 @@
+package test.uebung.uebung09.collection;
+
+import java.util.Iterator;
+
+import uebung09.collection.Set;
+import uebung09.collection.SetFactory;
+import java.util.NoSuchElementException;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class SetTest {
+
+    static String a = "test";
+    static String b = "test2";
+    static String c = "test3";
+
+
+    public static void main(String[] args) {
+    }
+
+    @Test
+    public void EmptySetTest(){
+
+        Set<String> test = SetFactory.create();
+
+        Iterator<String> i = test.iterator();
+
+        assertFalse(i.hasNext());
+        assertThrows(NoSuchElementException.class, i::next);
+        assertFalse(test.contains(a));
+        assertEquals(0,test.size());
+        assertTrue(test.isEmpty());
+    }
+
+    @Test
+    public void SingeltonSetTest(){
+
+        Set<String> test = SetFactory.create(a);
+
+        Iterator<String> i = test.iterator();
+
+        assertTrue(i.hasNext());
+        assertTrue(a == i.next());
+        assertFalse(i.hasNext());
+        assertThrows(NoSuchElementException.class, i::next);
+        assertTrue(test.contains(a));
+        assertEquals(1,test.size());
+        assertFalse(test.isEmpty());
+    }
+
+    @Test
+    public void BigSetTest() {
+
+        Set<String> test = SetFactory.create(a,b,c);
+
+        Iterator<String> i = test.iterator();
+
+        assertTrue(i.hasNext());
+        assertTrue(a == i.next());
+        assertTrue(i.hasNext());
+        assertTrue(a == i.next());
+        assertTrue(i.hasNext());
+        assertTrue(a == i.next());
+        assertFalse(i.hasNext());
+        assertThrows(NoSuchElementException.class, i::next);
+        assertTrue(test.contains(a));
+        assertEquals(1,test.size());
+        assertFalse(test.isEmpty());
+    }
+}

src/test/uebung/uebung09/iterator/Array2dIteratorTest.java

@@ -0,0 +1,44 @@
+package test.uebung.uebung09.iterator;
+
+import org.junit.Test;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+import uebung09.iterator.Array2dIterator;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+
+public class Array2dIteratorTest {
+    @Test
+    public void testArray2dIterator() {
+        final String[][] array = {{}, {"foo", "bar"}, {"baz"}, {}};
+        final Iterator<String> it = new Array2dIterator<>(array);
+        assertTrue(it.hasNext());
+        assertEquals("foo", it.next());
+        assertTrue(it.hasNext());
+        assertEquals("bar", it.next());
+        assertTrue(it.hasNext());
+        assertEquals("baz", it.next());
+        assertFalse(it.hasNext());
+        assertThrows(NoSuchElementException.class, it::next);
+    }
+
+    @Test
+    public void testArray2dIteratorOnlyEmpty() {
+        final String[][] array = {{}, {}, {}};
+        final Iterator<String> it = new Array2dIterator<>(array);
+        assertFalse(it.hasNext());
+        assertThrows(NoSuchElementException.class, it::next);
+    }
+
+    @Test
+    public void testArray2dIteratorEmpty() {
+        final String[][] array = {};
+        final Iterator<String> it = new Array2dIterator<>(array);
+        assertFalse(it.hasNext());
+        assertThrows(NoSuchElementException.class, it::next);
+    }
+}

src/test/uebung/uebung09/iterator/SkipNullIteratorTest.java

@@ -0,0 +1,124 @@
+package test.uebung.uebung09.iterator;
+
+import org.junit.Test;
+
+import java.util.Iterator;
+import java.util.NoSuchElementException;
+
+import uebung09.iterator.*;
+
+import static java.util.Arrays.asList;
+import static java.util.Collections.emptyList;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+
+public class SkipNullIteratorTest {
+    @Test
+    public void testEmpty() {
+        final Iterator<Object> it = new SkipNullIterator<>(emptyList().iterator());
+        assertFalse(it.hasNext());
+        assertThrows(NoSuchElementException.class, it::next);
+    }
+
+    @Test
+    public void testNull() {
+        final Iterator<Object> it = new SkipNullIterator<>(asList(null, null).iterator());
+        assertFalse(it.hasNext());
+        assertThrows(NoSuchElementException.class, it::next);
+    }
+
+    @Test
+    public void testNonNull() {
+        final Iterator<String> it = new SkipNullIterator<>(asList("foo").iterator());
+        assertTrue(it.hasNext());
+        assertEquals("foo", it.next());
+        assertFalse(it.hasNext());
+        assertThrows(NoSuchElementException.class, it::next);
+    }
+
+    @Test
+    public void testMixed() {
+        final Iterator<String> it = new SkipNullIterator<>(asList(null, "foo", null).iterator());
+        assertTrue(it.hasNext());
+        assertEquals("foo", it.next());
+        assertFalse(it.hasNext());
+        assertThrows(NoSuchElementException.class, it::next);
+    }
+
+    @Test
+    public void testMixed2() {
+        final Iterator<String> oriIt = asList("a", "b", null, "c").iterator();
+        Iterator<String> it = new SkipNullIterator<>(oriIt);
+        assertTrue(it.hasNext());
+        assertEquals("a", it.next());
+        assertTrue(it.hasNext());
+        assertEquals("b", it.next());
+        assertTrue(it.hasNext());
+        assertEquals("c", it.next());
+        assertFalse(it.hasNext());
+        assertThrows(NoSuchElementException.class, it::next);
+    }
+
+    @Test
+    public void testDontCallInCtor() {
+        final Iterator<String> dontCallNext = new Iterator<>() {
+            @Override
+            public boolean hasNext() {
+                throw new RuntimeException();
+            }
+
+            @Override
+            public String next() {
+                throw new RuntimeException();
+            }
+        };
+
+        new SkipNullIterator<>(dontCallNext);
+    }
+
+    @Test
+    public void testSkipNullIteratorInfinity() {
+        final Iterator<String> oriIt = new Iterator<>() {
+            @Override
+            public boolean hasNext() {
+                return true;
+            }
+
+            @Override
+            public String next() {
+                return "infinity";
+            }
+        };
+
+        final Iterator<String> it = new SkipNullIterator<>(oriIt);
+        for (int i = 0; i < 1000; i++) {
+            assertTrue(it.hasNext());
+            assertEquals("infinity", it.next());
+        }
+    }
+
+    @Test
+    public void testPathological() {
+        final Iterator<String> oriIt = new Iterator<>() {
+            private int ctr;
+
+            @Override
+            public boolean hasNext() {
+                return true;
+            }
+
+            @Override
+            public String next() {
+                return ctr++ > 100000 ? "infinity" : null;
+            }
+        };
+
+        final Iterator<String> it = new SkipNullIterator<>(oriIt);
+        for (int i = 0; i < 1000; i++) {
+            assertTrue(it.hasNext());
+            assertEquals("infinity", it.next());
+        }
+    }
+}

src/uebung04/ByeGame.java

@@ -1,20 +1,26 @@
 package uebung04;
 
+import java.util.ArrayList;
+
 public class ByeGame extends Game{
 
     private String player1;
+    private String player2;
     
 
-    public ByeGame(String player1, Game player2){
+    public ByeGame(String player1, String player2){
         this.player1 = player1;
         this.player2 = player2;
 
     }
 
     public String getPlayer1(){return player1;}
+    public String getPlayer2(){return player2;}
 
-    public ??? getPlayer2(){
-        return player2.getAllPlayers();
+    @Override
+    public ArrayList<String> getAllPlayers() {
+        // TODO Auto-generated method stub
+        throw new UnsupportedOperationException("Unimplemented method 'getAllPlayers'");
     }
 
     

src/uebung04/OrdinaryGame.java

@@ -7,7 +7,7 @@ public class OrdinaryGame extends Game{
     private final int id;
 
 
-    public OrdinaryGame(Game player1, Game player2){
+    public OrdinaryGame(String player1, String player2){
         this.player1 = player1;
         this.player2 = player2;
         
@@ -15,18 +15,16 @@ public class OrdinaryGame extends Game{
         counter++;
     }
 
-    public ArrayList<String> getPlayer1(){
-        return player1.getAllPlayers();
+    public String getPlayer1(){
+        return null;
     }
 
-    public ArrayList<String> getPlayer2(){
-        return player2.getAllPlayers();
+    public String getPlayer2(){
+        return null;
     }
 
     public ArrayList<String> getAllPlayers(){
-        ArrayList<String> rtn = player1.getAllPlayers();
-        rtn.addAll(player2.getAllPlayers());
-        return rtn;
+        return null;
     }
     
 }

src/uebung05/logistics/Demo.java

@@ -1,10 +1,10 @@
-package logistics;
+package uebung05.logistics;
 
-import logistics.material.BulletBelts;
-import logistics.material.LiterDiesel;
-import logistics.material.RocketPods;
+import uebung05.logistics.material.BulletBelts;
+import uebung05.logistics.material.LiterDiesel;
+import uebung05.logistics.material.RocketPods;
 
-class demo {
+class Demo {
 
     public static void main(String[] args) {
         Manager ceo = new Manager();

src/uebung05/logistics/Helicopter.java

@@ -1,13 +1,13 @@
-package logistics;
+package uebung05.logistics;
 
-import logistics.material.BulletBelts;
-import logistics.material.MetGallonsKerosene;
-import logistics.material.RocketPods;
-import logistics.quantities.FloatUnit;
-import logistics.quantities.IntUnit;
-import logistics.quantities.NeedCollector;
-import logistics.storage.FloatStorage;
-import logistics.storage.IntStorage;
+import uebung05.logistics.material.BulletBelts;
+import uebung05.logistics.material.MetGallonsKerosene;
+import uebung05.logistics.material.RocketPods;
+import uebung05.logistics.quantities.FloatUnit;
+import uebung05.logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.NeedCollector;
+import uebung05.logistics.storage.FloatStorage;
+import uebung05.logistics.storage.IntStorage;
 
 /**
  * The Helicopter class represents a helicopter in the logistics system.

src/uebung05/logistics/Manager.java

@@ -1,9 +1,9 @@
-package logistics;
+package uebung05.logistics;
 
-import logistics.quantities.FloatUnit;
-import logistics.quantities.IntUnit;
-import logistics.quantities.NeedCollector;
-import logistics.quantities.Unit;
+import uebung05.logistics.quantities.FloatUnit;
+import uebung05.logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.NeedCollector;
+import uebung05.logistics.quantities.Unit;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -63,7 +63,7 @@ public class Manager {
      *
      * @return The NeedCollector object containing the needs of all the vehicles
      */
-    NeedCollector collectNeeds() {
+    public NeedCollector collectNeeds() {
         NeedCollector collector = new NeedCollector();
         for (Vehicle vehicle : vehicles) {
             vehicle.reportNeeds(collector);

src/uebung05/logistics/NeedCollector.java

@@ -1,7 +1,7 @@
-package logistics;
+package uebung05.logistics;
 
-import logistics.quantities.FloatUnit;
-import logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.FloatUnit;
+import uebung05.logistics.quantities.IntUnit;
 
 import java.util.HashMap;
 import java.util.Map;

src/uebung05/logistics/Tank.java

@@ -1,13 +1,13 @@
-package logistics;
+package uebung05.logistics;
 
-import logistics.material.BulletBelts;
-import logistics.material.LiterDiesel;
-import logistics.material.ShellBatches;
-import logistics.quantities.FloatUnit;
-import logistics.quantities.IntUnit;
-import logistics.quantities.NeedCollector;
-import logistics.storage.FloatStorage;
-import logistics.storage.IntStorage;
+import uebung05.logistics.material.BulletBelts;
+import uebung05.logistics.material.LiterDiesel;
+import uebung05.logistics.material.ShellBatches;
+import uebung05.logistics.quantities.FloatUnit;
+import uebung05.logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.NeedCollector;
+import uebung05.logistics.storage.FloatStorage;
+import uebung05.logistics.storage.IntStorage;
 
 /**
  * The Tank class represents a tank in the logistics system.

src/uebung05/logistics/Truck.java

@@ -1,12 +1,12 @@
-package logistics;
+package uebung05.logistics;
 
-import logistics.material.BulletBelts;
-import logistics.material.LiterDiesel;
-import logistics.quantities.FloatUnit;
-import logistics.quantities.IntUnit;
-import logistics.quantities.NeedCollector;
-import logistics.storage.FloatStorage;
-import logistics.storage.IntStorage;
+import uebung05.logistics.material.BulletBelts;
+import uebung05.logistics.material.LiterDiesel;
+import uebung05.logistics.quantities.FloatUnit;
+import uebung05.logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.NeedCollector;
+import uebung05.logistics.storage.FloatStorage;
+import uebung05.logistics.storage.IntStorage;
 
 /**
  * The Truck class represents a truck in the logistics system.

src/uebung05/logistics/Vehicle.java

@@ -1,11 +1,11 @@
-package logistics;
+package uebung05.logistics;
 
-import logistics.material.Grease;
-import logistics.material.Oil;
-import logistics.quantities.FloatUnit;
-import logistics.quantities.IntUnit;
-import logistics.quantities.NeedCollector;
-import logistics.storage.IntStorage;
+import uebung05.logistics.material.Grease;
+import uebung05.logistics.material.Oil;
+import uebung05.logistics.quantities.FloatUnit;
+import uebung05.logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.NeedCollector;
+import uebung05.logistics.storage.IntStorage;
 
 /**
  * The Vehicle abstract class represents a vehicle in the logistics system.

src/uebung05/logistics/material/BulletBelts.java

@@ -1,6 +1,6 @@
-package logistics.material;
+package uebung05.logistics.material;
 
-import logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.IntUnit;
 
 /**
  * The BulletBelts class represents a unit of measurement for 7.62 bullets.
@@ -11,7 +11,7 @@ import logistics.quantities.IntUnit;
  */
 public class BulletBelts implements IntUnit {
 
-    private static BulletBelts INSTANCE;
+    public static BulletBelts INSTANCE;
 
     private BulletBelts() {}
 

src/uebung05/logistics/material/Grease.java

@@ -1,6 +1,6 @@
-package logistics.material;
+package uebung05.logistics.material;
 
-import logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.IntUnit;
 
 /**
  * The Grease class represents a unit of measurement for grease.
@@ -11,7 +11,7 @@ import logistics.quantities.IntUnit;
  */
 public class Grease implements IntUnit {
 
-    private static Grease INSTANCE;
+    public static Grease INSTANCE;
 
     private Grease() {}
 

src/uebung05/logistics/material/LiterDiesel.java

@@ -1,6 +1,6 @@
-package logistics.material;
+package uebung05.logistics.material;
 
-import logistics.quantities.FloatUnit;
+import uebung05.logistics.quantities.FloatUnit;
 
 /**
  * The LiterDiesel class represents a unit of measurement for diesel fuel.
@@ -11,7 +11,7 @@ import logistics.quantities.FloatUnit;
  */
 public class LiterDiesel implements FloatUnit {
 
-    private static LiterDiesel INSTANCE;
+    public static LiterDiesel INSTANCE;
 
     private LiterDiesel() {}
 

src/uebung05/logistics/material/MetGallonsKerosene.java

@@ -1,6 +1,6 @@
-package logistics.material;
+package uebung05.logistics.material;
 
-import logistics.quantities.FloatUnit;
+import uebung05.logistics.quantities.FloatUnit;
 
 /**
  * The MetGallonsKerosene class represents a unit of measurement for kerosene.
@@ -11,7 +11,7 @@ import logistics.quantities.FloatUnit;
  */
 public class MetGallonsKerosene implements FloatUnit {
 
-    private static MetGallonsKerosene INSTANCE;
+    public static MetGallonsKerosene INSTANCE;
 
     private MetGallonsKerosene() {}
 

src/uebung05/logistics/material/Oil.java

@@ -1,6 +1,6 @@
-package logistics.material;
+package uebung05.logistics.material;
 
-import logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.IntUnit;
 
 /**
  * The Oil class represents a unit of measurement for oil.
@@ -11,7 +11,7 @@ import logistics.quantities.IntUnit;
  */
 public class Oil implements IntUnit {
 
-    private static Oil INSTANCE;
+    public static Oil INSTANCE;
 
     private Oil() {}
 

src/uebung05/logistics/material/RocketPods.java

@@ -1,6 +1,6 @@
-package logistics.material;
+package uebung05.logistics.material;
 
-import logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.IntUnit;
 
 /**
  * The RocketPods class represents a unit of measurement for 70mm rocket pods.
@@ -11,7 +11,7 @@ import logistics.quantities.IntUnit;
  */
 public class RocketPods implements IntUnit {
 
-    private static RocketPods INSTANCE;
+    public static RocketPods INSTANCE;
 
     private RocketPods() {}
 

src/uebung05/logistics/material/ShellBatches.java

@@ -1,6 +1,6 @@
-package logistics.material;
+package uebung05.logistics.material;
 
-import logistics.quantities.IntUnit;
+import uebung05.logistics.quantities.IntUnit;
 
 /**
  * The ShellBatches class represents a unit of measurement for 120mm shell batches.
@@ -11,7 +11,7 @@ import logistics.quantities.IntUnit;
  */
 public class ShellBatches implements IntUnit {
 
-    private static ShellBatches INSTANCE;
+    public static ShellBatches INSTANCE;
 
     private ShellBatches() {}