增加淘宝群内容，修改部分文件组织

数据结构(双语)/数据结构 day16【瑞客论坛 www.ruike1.com】/代码/11-哈希表/src/com/mj/model/Key.java

@@ -0,0 +1,26 @@
+package com.mj.model;
+
+public class Key {
+	protected int value;
+
+	public Key(int value) {
+		this.value = value;
+	}
+	
+	@Override
+	public int hashCode() {
+		return value / 10;
+	}
+	
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == this) return true;
+		if (obj == null || obj.getClass() != getClass()) return false;
+		return ((Key) obj).value == value;
+	}
+	
+	@Override
+	public String toString() {
+		return "v(" + value + ")";
+	}
+}

数据结构(双语)/数据结构 day16【瑞客论坛 www.ruike1.com】/代码/11-哈希表/src/com/mj/model/Person.java

@@ -0,0 +1,43 @@
+package com.mj.model;
+
+public class Person implements Comparable<Person> {
+	private int age;   // 10  20
+	private float height; // 1.55 1.67
+	private String name; // "jack" "rose"
+	
+	public Person(int age, float height, String name) {
+		this.age = age;
+		this.height = height;
+		this.name = name;
+	}
+	
+	@Override
+	/**
+	 * 用来比较2个对象是否相等
+	 */
+	public boolean equals(Object obj) {
+		// 内存地址
+		if (this == obj) return true;
+		if (obj == null || obj.getClass() != getClass()) return false;
+		// if (obj == null || !(obj instanceof Person)) return false;
+		
+		// 比较成员变量
+		Person person = (Person) obj;
+		return person.age == age
+				&& person.height == height
+				&& (person.name == null ? name == null : person.name.equals(name));
+	}
+	
+	@Override
+	public int hashCode() {
+		int hashCode = Integer.hashCode(age);
+		hashCode = hashCode * 31 + Float.hashCode(height);
+		hashCode = hashCode * 31 + (name != null ? name.hashCode() : 0);
+		return hashCode;
+	}
+
+	@Override
+	public int compareTo(Person o) {
+		return age - o.age;
+	}
+}

数据结构(双语)/数据结构 day16【瑞客论坛 www.ruike1.com】/代码/11-哈希表/src/com/mj/model/Student.java

@@ -0,0 +1,10 @@
+package com.mj.model;
+
+public class Student extends Person {
+
+	public Student(int age, float height, String name) {
+		super(age, height, name);
+		// TODO Auto-generated constructor stub
+	}
+
+}

数据结构(双语)/数据结构 day16【瑞客论坛 www.ruike1.com】/代码/11-哈希表/src/com/mj/model/SubKey1.java

@@ -0,0 +1,17 @@
+package com.mj.model;
+
+public class SubKey1 extends Key {
+
+	public SubKey1(int value) {
+		super(value);
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == this) return true;
+		if (obj == null || 
+				(obj.getClass() != SubKey1.class 
+				&& obj.getClass() != SubKey2.class)) return false;
+		return ((Key) obj).value == value;
+	}
+}

数据结构(双语)/数据结构 day16【瑞客论坛 www.ruike1.com】/代码/11-哈希表/src/com/mj/model/SubKey2.java

@@ -0,0 +1,17 @@
+package com.mj.model;
+
+public class SubKey2 extends Key {
+
+	public SubKey2(int value) {
+		super(value);
+	}
+	
+	@Override
+	public boolean equals(Object obj) {
+		if (obj == this) return true;
+		if (obj == null || 
+				(obj.getClass() != SubKey1.class 
+				&& obj.getClass() != SubKey2.class)) return false;
+		return ((Key) obj).value == value;
+	}
+}