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DesignPatterns/IteratorEnComposite/ASDII_ChannelSurferStarter/src/domein/Channel.java

@@ -0,0 +1,21 @@
+package domein;
+
+import java.util.Date;
+
+public class Channel {
+
+    private final int numberChannel;
+
+    public Channel(int number) {
+        this.numberChannel = number;
+    }
+
+    public int getNumberChannel() {
+        return numberChannel;
+    }
+
+     public Program getCurrentProgram()
+    {
+        return new Program(new Date(), this);
+    }
+}

DesignPatterns/IteratorEnComposite/ASDII_ChannelSurferStarter/src/domein/Program.java

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+package domein;
+
+import java.util.Date;
+
+public class Program {
+
+    private final Channel channel;
+    private final Date date;
+
+    public Program(Date date, Channel channel) {
+        this.date= date;
+        this.channel = channel;
+    }
+
+    public int getNrChannel() {
+        return channel.getNumberChannel();
+    }
+}

DesignPatterns/IteratorEnComposite/ASDII_ChannelSurferStarter/src/domein/Television.java

@@ -0,0 +1,22 @@
+package domein;
+
+public class Television {
+
+    //TODO attributes
+
+
+    public Television(int maxChannel) {
+        //TODO
+    }
+
+    public Program getNextProgram() {
+        //TODO
+        return null;
+    }
+
+    public Program getPrevProgram() {
+        //TODO
+        return null;
+    }
+
+}

DesignPatterns/IteratorEnComposite/ASDII_ChannelSurferStarter/src/oefeningiteratorstarter/OefeningIteratorStarter.java

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+package oefeningiteratorstarter;
+
+import domein.Program;
+import domein.Television;
+
+public class OefeningIteratorStarter {
+
+    private static final int MAX = 5;
+
+    public static void main(String[] args) {
+        Television television = new Television(MAX);
+        System.out.printf("MAX channels %d%n", MAX);
+
+        Program program = television.getNextProgram();
+        System.out.printf("next %d%n", program.getNrChannel());
+        program = television.getNextProgram();
+        System.out.printf("next %d%n", program.getNrChannel());
+        program = television.getPrevProgram();
+        System.out.printf("prev %d%n", program.getNrChannel());
+        program = television.getPrevProgram();
+        System.out.printf("prev %d%n", program.getNrChannel());
+        program = television.getPrevProgram();
+        System.out.printf("prev %d%n", program.getNrChannel());
+        program = television.getNextProgram();
+        System.out.printf("next %d%n", program.getNrChannel());
+
+        for (int i = 1; i < MAX; i++) {
+            program = television.getNextProgram();
+            System.out.printf("next %d%n", program.getNrChannel());
+        }
+
+        program = television.getPrevProgram();
+        System.out.printf("prev %d%n", program.getNrChannel());
+        program = television.getNextProgram();
+        System.out.printf("next %d%n", program.getNrChannel());
+    }
+
+}

DesignPatterns/IteratorEnComposite/ASDII_ChannelSurferStarter/src/testen/TelevisionTest.java

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+package testen;
+
+import domein.Program;
+import domein.Television;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+public class TelevisionTest {
+
+    private Television television;
+    private final int MAX = 5;
+
+    @BeforeEach
+    public void before() {
+        television = new Television(MAX);
+    }
+
+    @Test
+    public void testChannels() {
+        Program program = television.getNextProgram();
+        Assertions.assertEquals(1, program.getNrChannel());
+        program = television.getNextProgram();
+        Assertions.assertEquals(2, program.getNrChannel());
+        program = television.getPrevProgram();
+        Assertions.assertEquals(1, program.getNrChannel());
+        program = television.getPrevProgram();
+        Assertions.assertEquals(0, program.getNrChannel());
+        program = television.getPrevProgram();
+        Assertions.assertEquals(4, program.getNrChannel());
+        program = television.getNextProgram();
+        Assertions.assertEquals(0, program.getNrChannel());
+        for (int i = 1; i < MAX; i++) {
+            program = television.getNextProgram();
+            Assertions.assertEquals(i, program.getNrChannel());
+        }
+        program = television.getPrevProgram();
+        Assertions.assertEquals(3, program.getNrChannel());
+        program = television.getNextProgram();
+        Assertions.assertEquals(4, program.getNrChannel());
+    }
+    @Test
+    public void testVolgendeChannels() {
+        int verwachteNrChannel = 1;
+        for (int i = 0; i < 20; i++) {
+            Program program = television.getNextProgram();
+            Assertions.assertEquals(verwachteNrChannel++, program.getNrChannel());
+            if (verwachteNrChannel == MAX) {
+                verwachteNrChannel = 0;
+            }            
+        }
+    }
+    @Test
+    public void testPrevChannels() {
+        int verwachteNrChannel = MAX - 1;
+        for (int i = 0; i < 20; i++) {
+            Program program = television.getPrevProgram();
+            Assertions.assertEquals(verwachteNrChannel--, program.getNrChannel());
+            if (verwachteNrChannel < 0) {
+                verwachteNrChannel = MAX - 1;
+            }        
+        }
+    }
+}

DesignPatterns/IteratorEnComposite/ASDII_ChannelSurferStarter/vpproject/diagrams/klassendiagram.vpclassd

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+#Visual Paradigm: DO NOT MODIFY THIS FILE!
+#Thu Jan 13 21:49:09 CET 2022
+DiagramId=NBSfGlqGAqACAhKl
+Create=false
+ProjectId=OBcfGlqGAqACAgwO