Merge pull request #10 from xukaide77/20170226-collection

实现arraylist、linkedlist、stack、queue和binarytreenode插入
onlyliuxin · Feb 26, 2017 · 86a73e5 · 86a73e5
2 parents 6ab3255 + 371b7ce
commit 86a73e5
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diff --git a/group19/527220084/xukai_coding/.gitignore b/group19/527220084/xukai_coding/.gitignore
@@ -0,0 +1,8 @@
+*target
+*.classpath
+*.project
+*.settings
+*iml
+.idea
+*gen-*
+rebel.xml
diff --git a/group19/527220084/xukai_coding/coding-common/pom.xml b/group19/527220084/xukai_coding/coding-common/pom.xml
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>xukai.coding</artifactId>
+        <groupId>org.xukai.coding</groupId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+    <packaging>jar</packaging>
+    <artifactId>coding.common</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.freemarker</groupId>
+            <artifactId>freemarker</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>commons-beanutils</groupId>
+            <artifactId>commons-beanutils</artifactId>
+            <version>1.8.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-compress</artifactId>
+            <version>1.8.1</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-lang</groupId>
+            <artifactId>commons-lang</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>commons-logging</groupId>
+            <artifactId>commons-logging</artifactId>
+            <version>1.2</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.google.guava</groupId>
+            <artifactId>guava</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-log4j12</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>jcl-over-slf4j</artifactId>
+        </dependency>
+        <!--<dependency>-->
+        <!--<groupId>net.sf.log4jdbc</groupId>-->
+        <!--<artifactId>log4jdbc4</artifactId>-->
+        <!--<version>1.1</version>-->
+        <!--</dependency>-->
+        <!-- https://mvnrepository.com/artifact/com.google.code.findbugs/jsr305 -->
+        <dependency>
+            <groupId>com.google.code.findbugs</groupId>
+            <artifactId>jsr305</artifactId>
+            <version>3.0.1</version>
+        </dependency>
+        <dependency>
+            <groupId>cglib</groupId>
+            <artifactId>cglib</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>joda-time</groupId>
+            <artifactId>joda-time</artifactId>
+        </dependency>
+
+
+
+        <!--<dependency>-->
+        <!--<groupId>org.slf4j</groupId>-->
+        <!--<artifactId>slf4j-nop</artifactId>-->
+        <!--<version>1.7.12</version>-->
+        <!--</dependency>-->
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>fastjson</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>
diff --git a/group19/527220084/xukai_coding/coding-common/src/main/java/org/xukai/common/ArrayList.java b/group19/527220084/xukai_coding/coding-common/src/main/java/org/xukai/common/ArrayList.java
@@ -0,0 +1,102 @@
+package org.xukai.common;
+
+
+
+public class ArrayList implements List {
+
+	private int size = 0;
+
+	private static final int DEFAULT_CAPICITY = 10;
+
+	public ArrayList() {
+		elementData = new Object[DEFAULT_CAPICITY];
+	}
+
+	public ArrayList(int size) {
+		elementData = new Object[size];
+	}
+
+	private Object[] elementData ;
+
+	public void add(Object o){
+		elementData[size] = o;
+		size++;
+	}
+	public void add(int index, Object o){
+		if (index < 0 || index > size ) {
+			throw new ArrayIndexOutOfBoundsException();
+		} else {
+			if (isNeedResize(index)) {
+				elementData = grown(elementData, Math.max(elementData.length << 1, index + 1));
+			}
+			if(index < size){
+				System.arraycopy(elementData,index,elementData,index+1,size-index);
+			}
+			elementData[index] = o;
+		}
+		size++;
+	}
+
+
+
+	public Object get(int index){
+		if (index > size-1 || index < 0) {
+			throw new ArrayIndexOutOfBoundsException();
+		}
+		return elementData[index];
+	}
+
+	public Object remove(int index){
+		if (index > size-1 || index < 0) {
+			throw new ArrayIndexOutOfBoundsException();
+		}
+		Object result = elementData[index];
+		size--;
+		System.arraycopy(elementData,index+1,elementData,index,size-index);
+		return result;
+	}
+
+	public int size(){
+		return size;
+	}
+
+	public Iterator iterator(){
+		return new ArrayListIterator();
+	}
+
+	class ArrayListIterator implements Iterator {
+
+		private int pos = -1;
+
+		@Override
+		public boolean hasNext() {
+			return pos < size - 1;
+		}
+
+		@Override
+		public Object next() {
+			pos++;
+			return elementData[pos];
+		}
+	}
+
+	public void display(){
+		System.out.print("[");
+		Iterator iterator = iterator();
+		while (iterator.hasNext()){
+			System.out.print(" " + iterator.next());
+		}
+		System.out.print(" ]");
+	}
+
+	private boolean isNeedResize(int index){
+		return index > elementData.length-1 || size > elementData.length-1;
+	}
+
+	private Object[] grown(Object[] src,int capacity){
+		Object[] des = new Object[capacity];
+		System.arraycopy(elementData,0,des,0,elementData.length);
+		return des;
+	}
+
+}
diff --git a/...9/527220084/xukai_coding/coding-common/src/main/java/org/xukai/common/BinaryTreeNode.java b/...9/527220084/xukai_coding/coding-common/src/main/java/org/xukai/common/BinaryTreeNode.java
@@ -0,0 +1,53 @@
+package org.xukai.common;
+
+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(Comparable o){
+		if (data == null) {
+			data = o;
+			return this;
+		} else {
+			BinaryTreeNode node = new BinaryTreeNode();
+			node.data = o;
+			if (o.compareTo(data) < 0) {
+				if (left == null) {
+					left = node;
+					return node;
+				} else {
+					return left.insert(o);
+				}
+			} else {
+				if (right == null) {
+					right = node;
+					return node;
+				} else {
+					return right.insert(o);
+				}
+			}
+		}
+	}
+
+}
diff --git a/group19/527220084/xukai_coding/coding-common/src/main/java/org/xukai/common/Iterator.java b/group19/527220084/xukai_coding/coding-common/src/main/java/org/xukai/common/Iterator.java
@@ -0,0 +1,7 @@
+package org.xukai.common;
+
+public interface Iterator {
+	public boolean hasNext();
+	public Object next();
+
+}