daadaadaah · daadaadaah · Mar 9, 2023 · Mar 9, 2023 · Mar 12, 2023 · May 8, 2023
diff --git a/java-oop-design-pattern/RemoteSystemsTempFiles/.project b/java-oop-design-pattern/RemoteSystemsTempFiles/.project
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>RemoteSystemsTempFiles</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.rse.ui.remoteSystemsTempNature</nature>
+	</natures>
+</projectDescription>
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/.classpath b/java-oop-design-pattern/ch1-Student-Transcript-Course/.classpath
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/.project b/java-oop-design-pattern/ch1-Student-Transcript-Course/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>ch1-Student-Transcript-Course</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/.settings/org.eclipse.jdt.core.prefs b/java-oop-design-pattern/ch1-Student-Transcript-Course/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.7
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.7
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/bin/Course.class b/java-oop-design-pattern/ch1-Student-Transcript-Course/bin/Course.class
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/bin/Main.class b/java-oop-design-pattern/ch1-Student-Transcript-Course/bin/Main.class
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/bin/Student.class b/java-oop-design-pattern/ch1-Student-Transcript-Course/bin/Student.class
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/bin/Transcript.class b/java-oop-design-pattern/ch1-Student-Transcript-Course/bin/Transcript.class
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/src/Course.java b/java-oop-design-pattern/ch1-Student-Transcript-Course/src/Course.java
@@ -0,0 +1,30 @@
+import java.util.Iterator;
+import java.util.Vector;
+
+
+public class Course {
+	private Vector<Transcript> transcripts;
+	private String name;
+
+	public Course(String name) {
+		this.name = name;
+		transcripts = new Vector<Transcript>();
+	}
+	public void addTranscript(Transcript transcript) {
+		transcripts.add(transcript);
+	}
+	public String getName() {
+		return name;
+	}
+
+	public Vector<Student> getStudents() {
+		Vector<Student> students = new Vector<Student>();
+		Iterator<Transcript> itor = transcripts.iterator();
+
+		while (itor.hasNext()) {
+			Transcript tr = itor.next();
+			students.add(tr.getStudent());
+		}
+		return students;
+	}
+}
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/src/Main.java b/java-oop-design-pattern/ch1-Student-Transcript-Course/src/Main.java
@@ -0,0 +1,40 @@
+import java.util.Vector;
+
+
+public class Main {
+
+
+	public static void main(String[] args) {
+		Student s1 = new Student("ManSup");
+		Student s2 = new Student("GilDong");
+		Student s3 = new Student("GilSeo");
+		Course se = new Course("Software Engineering");
+		Course designPattern = new Course("Design Pattern");
+		Transcript t1 = new Transcript(s1, se);
+		Transcript t2 = new Transcript(s1, designPattern);
+		Transcript t3 = new Transcript(s2, designPattern);
+		Transcript t4 = new Transcript(s1, designPattern);
+
+		t1.setDate("2012");
+		t1.setGrade("B0");
+		t3.setDate("2013");
+		t3.setGrade("C+");
+		t2.setDate("2012");
+		t2.setGrade("D+");
+		t4.setDate("2013");
+		t4.setGrade("A+");
+
+		Vector<Course> courses;
+
+		courses = s1.getCourses();
+		for (int i=0; i<courses.size(); i++) 							
+			System.out.println(courses.get(i).getName());
+
+		Vector<Student> students;
+
+		students = designPattern.getStudents();
+		for (int i=0; i<students.size(); i++) 							
+			System.out.println(students.get(i).getName());
+	}
+
+}
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/src/Student.java b/java-oop-design-pattern/ch1-Student-Transcript-Course/src/Student.java
@@ -0,0 +1,32 @@
+import java.util.Iterator;
+import java.util.Vector;
+
+
+
+
+public class Student {
+	private Vector<Transcript> transcripts;
+	private String name;
+
+	public Student(String name) {
+		this.name = name;
+		transcripts = new Vector<Transcript>();
+	}
+	public void addTranscript(Transcript transcript) {
+		transcripts.add(transcript);	
+	}
+	public Vector<Course> getCourses() {
+		Vector<Course> courses = new Vector<Course>();
+		Iterator<Transcript> itor = transcripts.iterator();
+
+		while (itor.hasNext()) {
+			Transcript tr = itor.next();
+			courses.add(tr.getCourse());
+		}
+		return courses;
+	}
+	public String getName() {
+		// TODO Auto-generated method stub
+		return this.name;
+	}
+}
diff --git a/java-oop-design-pattern/ch1-Student-Transcript-Course/src/Transcript.java b/java-oop-design-pattern/ch1-Student-Transcript-Course/src/Transcript.java
@@ -0,0 +1,38 @@
+
+public class Transcript {
+	private Student student;
+	private Course course;
+
+	private String date;
+	private String grade;
+	public Transcript(Student student, Course course) {
+		this.student = student;
+		this.student.addTranscript(this);
+		this.course = course;
+		this.course.addTranscript(this);
+	}
+
+	public Student getStudent() {
+		return student;
+	}
+
+	public Course getCourse() {
+		return course;
+	}
+
+	public void setDate(String date) {
+		this.date = date;
+	}
+
+	public String getDate() {
+		return date;
+	}
+
+	public void setGrade(String grade) {
+	this.grade = grade;
+	}
+
+	public String getGrade() {
+		return grade;
+	}
+}
diff --git a/java-oop-design-pattern/ch2-문제4-답/.classpath b/java-oop-design-pattern/ch2-문제4-답/.classpath
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/java-oop-design-pattern/ch2-문제4-답/.project b/java-oop-design-pattern/ch2-문제4-답/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>ch2-문제4-답</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/java-oop-design-pattern/ch2-문제4-답/.settings/org.eclipse.jdt.core.prefs b/java-oop-design-pattern/ch2-문제4-답/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.7
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.7
diff --git a/java-oop-design-pattern/ch2-문제4-답/bin/CartForSongs.class b/java-oop-design-pattern/ch2-문제4-답/bin/CartForSongs.class
diff --git a/java-oop-design-pattern/ch2-문제4-답/bin/DiscountedMode.class b/java-oop-design-pattern/ch2-문제4-답/bin/DiscountedMode.class
diff --git a/java-oop-design-pattern/ch2-문제4-답/bin/Main.class b/java-oop-design-pattern/ch2-문제4-답/bin/Main.class
diff --git a/java-oop-design-pattern/ch2-문제4-답/bin/NonDiscounted.class b/java-oop-design-pattern/ch2-문제4-답/bin/NonDiscounted.class
diff --git a/java-oop-design-pattern/ch2-문제4-답/bin/OnSale.class b/java-oop-design-pattern/ch2-문제4-답/bin/OnSale.class
diff --git a/java-oop-design-pattern/ch2-문제4-답/bin/Song.class b/java-oop-design-pattern/ch2-문제4-답/bin/Song.class
diff --git a/java-oop-design-pattern/ch2-문제4-답/bin/TodayEvent.class b/java-oop-design-pattern/ch2-문제4-답/bin/TodayEvent.class
diff --git a/java-oop-design-pattern/ch2-문제4-답/src/CartForSongs.java b/java-oop-design-pattern/ch2-문제4-답/src/CartForSongs.java
@@ -0,0 +1,26 @@
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.Iterator;
+
+
+public class CartForSongs {
+
+	ArrayList<Song> cart = new ArrayList<Song>();
+	public double calculateTotalPrice() {
+
+		double total = 0.0;
+		Iterator<Song> itr = cart.iterator();
+
+		while (itr.hasNext()) {
+			Song s = itr.next();
+			total = total+s.getPrice();
+
+		}
+		return total;
+	}
+
+	public void add(Song s) {
+		cart.add(s);
+	}
+
+}
diff --git a/java-oop-design-pattern/ch2-문제4-답/src/DiscountedMode.java b/java-oop-design-pattern/ch2-문제4-답/src/DiscountedMode.java
@@ -0,0 +1,5 @@
+
+public abstract class DiscountedMode {
+	public abstract double getDiscountRate();
+
+}
diff --git a/java-oop-design-pattern/ch2-문제4-답/src/Main.java b/java-oop-design-pattern/ch2-문제4-답/src/Main.java
@@ -0,0 +1,27 @@
+
+public class Main {
+
+	/**
+	 * @param args
+	 */
+	public static void main(String[] args) {
+		Song s1 = new Song();
+		s1.setMode(new NonDiscounted());
+		Song s2 = new Song();
+		s2.setMode(new NonDiscounted());
+		Song s3 = new Song();
+		s3.setMode(new OnSale());
+		Song s4 = new Song();
+		s4.setMode(new TodayEvent());
+
+		CartForSongs c = new CartForSongs();
+		c.add(s1);
+		c.add(s2);
+		c.add(s3);
+		c.add(s4);
+
+		System.out.println(c.calculateTotalPrice());
+
+	}
+
+}
diff --git a/java-oop-design-pattern/ch2-문제4-답/src/NonDiscounted.java b/java-oop-design-pattern/ch2-문제4-답/src/NonDiscounted.java
@@ -0,0 +1,10 @@
+
+public class NonDiscounted extends DiscountedMode {
+
+	@Override
+	public double getDiscountRate() {
+		// TODO Auto-generated method stub
+		return 0.0;
+	}
+
+}
diff --git a/java-oop-design-pattern/ch2-문제4-답/src/OnSale.java b/java-oop-design-pattern/ch2-문제4-답/src/OnSale.java
@@ -0,0 +1,10 @@
+
+public class OnSale extends DiscountedMode {
+
+	@Override
+	public double getDiscountRate() {
+		// TODO Auto-generated method stub
+		return 0.1;
+	}
+
+}
diff --git a/java-oop-design-pattern/ch2-문제4-답/src/Song.java b/java-oop-design-pattern/ch2-문제4-답/src/Song.java
@@ -0,0 +1,10 @@
+
+public class Song {
+	private DiscountedMode mode;
+	public void setMode(DiscountedMode mode) {
+		this.mode = mode;
+	}
+	public  double getPrice() {
+		return 10.0-(10.0*this.mode.getDiscountRate());
+	}
+}
diff --git a/java-oop-design-pattern/ch2-문제4-답/src/TodayEvent.java b/java-oop-design-pattern/ch2-문제4-답/src/TodayEvent.java
@@ -0,0 +1,10 @@
+
+public class TodayEvent extends DiscountedMode {
+
+	@Override
+	public double getDiscountRate() {
+		// TODO Auto-generated method stub
+		return 0.3;
+	}
+
+}
diff --git a/java-oop-design-pattern/ch2-문제4/.classpath b/java-oop-design-pattern/ch2-문제4/.classpath
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/java-oop-design-pattern/ch2-문제4/.project b/java-oop-design-pattern/ch2-문제4/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>ch2-문제4</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/java-oop-design-pattern/ch2-문제4/.settings/org.eclipse.jdt.core.prefs b/java-oop-design-pattern/ch2-문제4/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.7
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.7
diff --git a/java-oop-design-pattern/ch2-문제4/bin/CartForSongs.class b/java-oop-design-pattern/ch2-문제4/bin/CartForSongs.class
diff --git a/java-oop-design-pattern/ch2-문제4/bin/Main.class b/java-oop-design-pattern/ch2-문제4/bin/Main.class
diff --git a/java-oop-design-pattern/ch2-문제4/bin/Song.class b/java-oop-design-pattern/ch2-문제4/bin/Song.class