Merge pull request #8 from YouHmilyForProgramming/master

作业

group10/706097141/learning/src/com/hmily/learning/BinaryTreeNode.java

@@ -0,0 +1,31 @@
+package com.hmily.learning;
+public class BinaryTreeNode {
+
+	private Object data;
+	private BinaryTreeNode left;
+	private BinaryTreeNode right;
+
+	public Object getData() {
+		return data;
+	}
+	public void setData(Object data) {
+		this.data = data;
+	}
+	public BinaryTreeNode getLeft() {
+		return left;
+	}
+	public void setLeft(BinaryTreeNode left) {
+		this.left = left;
+	}
+	public BinaryTreeNode getRight() {
+		return right;
+	}
+	public void setRight(BinaryTreeNode right) {
+		this.right = right;
+	}
+
+	public BinaryTreeNode insert(Object o){
+		return  null;
+	}
+
+}

group10/706097141/learning/src/com/hmily/learning/Iterator.java

@@ -0,0 +1,7 @@
+package com.hmily.learning;
+
+public interface Iterator {
+	public boolean hasNext();
+	public Object next();
+
+}

group10/706097141/learning/src/com/hmily/learning/LinkedList.java

@@ -0,0 +1,91 @@
+package com.hmily.learning;
+/**
+ * 不会写
+ * @author zyzhmily
+ *
+ */
+public class LinkedList implements List {
+
+	//链表头
+	private Node head;
+	//链表尾
+	private Node tail;
+	//链表大小
+	private int size;
+
+	public void add(Object o){
+		Node t = tail;
+        Node node = new Node(o, null);
+        tail = node;
+        if (t == null) {
+            head = node;
+        } else {
+            t.next = node;
+        }
+        size++;
+	}
+	public void add(int index , Object o){
+		if(index<0||index>size()){
+			throw new IndexOutOfBoundsException();
+		}
+		if (index == size) {
+            add(o);
+        } else {
+         Node node = head;
+         for (int i = 0; i < index-1; i++) {
+        	 node = node.next;
+             }
+         Node newNode = new Node(o, node);
+         node.next = newNode;
+         newNode.next = node;
+         size++;
+        }
+	}
+	public Object get(int index){
+		if(index<0||index>size()){
+			throw new IndexOutOfBoundsException();
+		}
+		Node node=head;
+		for(int i=0;i<index;i++){
+			node=node.next;
+		}
+		return node.data;
+	}
+	public Object remove(int index){
+		if(index<0||index>size()){
+			throw new IndexOutOfBoundsException();
+		}
+		return null;
+	}
+
+	public int size(){
+		return this.size;
+	}
+
+	public void addFirst(Object o){
+		Node newNode = new Node(o,null);
+		newNode.next=head.next;
+	}
+	public void addLast(Object o){
+		add(o);
+	}
+	public Object removeFirst(){
+		return null;
+	}
+	public Object removeLast(){
+		return null;
+	}
+	public Iterator iterator(){
+		return null;
+	}
+
+
+	private static class Node{
+        Object data;
+        Node next;
+        public Node(Object data, Node next) {
+            this.data = data;
+            this.next = next;
+        }
+    }
+}

group10/706097141/learning/src/com/hmily/learning/List.java

@@ -0,0 +1,8 @@
+package com.hmily.learning;
+public interface List {
+	public void add(Object o);
+	public void add(int index, Object o);
+	public Object get(int index);
+	public Object remove(int index);
+	public int size();
+}

group10/706097141/learning/src/com/hmily/learning/MyArrayList.java

@@ -0,0 +1,91 @@
+package com.hmily.learning;
+
+public class MyArrayList implements List,Iterator{
+
+	private int size = 0;
+
+	private Object[] elementData = new Object[100];
+
+	/**
+	 * 添加元素
+	 */
+	public void add(Object o){
+		 if(size==elementData.length){
+			Object[] newElementData = new Object[elementData.length+1];
+			for(int i=0;i<elementData.length;i++){
+				newElementData[i] = elementData[i];
+			       }
+				newElementData[elementData.length+1]=o;
+				elementData = newElementData;
+				size++;
+			}else{
+				elementData[size+1]=o;
+				size++;
+			}
+	}
+	/**
+	 * 在指定位置添加元素
+	 */
+	public void add(int index, Object o){
+		if(size()==elementData.length){
+			Object[] newElementData = new Object[size()*2+1];
+			for(int i=0;i<elementData.length;i++){
+				newElementData[i] = elementData[i];
+			       }
+				elementData = newElementData;
+		}
+		for(int i=size();i>index;i--){
+			elementData[i]=elementData[i-1];
+		}
+		elementData[index]=o;
+		size++;
+	}
+	/**
+	 * 获取元素
+	 */
+	public Object get(int index){
+		if(index>=size()||index<0){
+			throw new ArrayIndexOutOfBoundsException();
+		}
+		return elementData[index];
+	}
+	/**
+	 * 移除元素
+	 */
+	public Object remove(int index){
+		if(index<0||index>size()){
+			throw new ArrayIndexOutOfBoundsException();
+		}
+		Object o=elementData[index];
+		for(int i=index;i<size();i++){
+			elementData[i]=elementData[i+1];
+		}
+		return o;
+	}
+
+	public int size(){
+		return this.size;
+	}
+	/**
+	 * 数组下标
+	 */
+	private int bounds=0;
+
+	public Iterator iterator(){
+		return this.iterator();
+	}
+	/**
+	 * 
+	 */
+	@Override
+	public boolean hasNext() {
+		return bounds<size();
+	}
+	@Override
+	public Object next() {
+		if(!hasNext()){
+			throw new ArrayIndexOutOfBoundsException();
+		}
+		return elementData[bounds++];
+	}
+}

group10/706097141/learning/src/com/hmily/learning/MyQueue.java

@@ -0,0 +1,23 @@
+package com.hmily.learning;
+
+public class MyQueue {
+	private MyArrayList elementData = new MyArrayList();
+	private int size;
+	public void enQueue(Object o){	
+		elementData.add(o);
+		size=elementData.size();
+	}
+
+	public Object deQueue(){
+		Object o=elementData.remove(0);
+		return o;
+	}
+
+	public boolean isEmpty(){
+		return size()==0;
+	}
+
+	public int size(){
+		return size;
+	}
+}

group10/706097141/learning/src/com/hmily/learning/MyStack.java

@@ -0,0 +1,26 @@
+package com.hmily.learning;
+public class MyStack {
+	private MyArrayList elementData = new MyArrayList();
+	private int size;
+	public void push(Object o){	
+		elementData.add(o);
+		size=elementData.size();
+	}
+
+	public Object pop(){
+		Object o=elementData.remove(this.size()-1);
+		size=elementData.size();
+	    return o;
+	}
+
+	public Object peek(){
+		Object o=elementData.get(size()-1);
+		return o;
+	}
+	public boolean isEmpty(){
+		return size()==0;
+	}
+	public int size(){
+		return elementData.size();
+	}
+}

group10/706097141/learning/src/com/hmily/test/MyTest.java

@@ -0,0 +1,9 @@
+package com.hmily.test;
+
+public class MyTest {
+
+	public static void main(String[] args) {
+		System.out.println("Hello World!!!");
+	}
+
+}