几种常见的数据结构的JAVA实现
依旧没有文字说明，只有少量的注释，二叉查找树有很多参考资料，这里就不多说了。下面奉上JAVA代码
package utility.structure;
import java.io.Serializable;
import java.security.InvalidParameterException;
import java.util.Comparator;
import java.util.ConcurrentModificationException;
/**
*
* @author odie.tang
* @version 1.0 11/09/09
*/
public class BinarySearchTree<E> implements Comparable<E>,Serializable{
private static final long serialVersionUID = -8154673525487170187L;
/**
* The comparator, or null if priority queue uses elements'
* natural ordering.
*/
private Comparator<? super E> comparator = null;
private E data;
private BinarySearchTree<E> parent = null;
private BinarySearchTree<E> leftChild = null;
private BinarySearchTree<E> rightChild = null;
/**
* level indicates node's level in the whole tree, eg: root's level is 1, and its children's level is 2...
*/
private int level;
/**
* to identify the whether the child is a left child or a right one
*/
enum Child{left,right};
public BinarySearchTree() {
this.level = 0;
}
public BinarySearchTree(Comparator<? super E> comparator){
this.comparator = comparator;
this.level = 0;
}
public BinarySearchTree(E root) {
this(root,null);
}
public BinarySearchTree(E root,Comparator<? super E> comparator){
this.data = root;
this.comparator = comparator;
this.level = 1;
}
private BinarySearchTree(BinarySearchTree<E> parent,Child childType,E child){
this.data = child;
this.parent = parent;
this.level = parent.level + 1;
if (childType == Child.left)
parent.leftChild = this;
else
parent.rightChild = this;
this.comparator = parent.comparator;
}
public void add(E e){
if (this.level == 0){
this.level = 1;
this.data = e;
}
else{
BinarySearchTree<
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example： 求5的阶乘。。
如下：
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if(n==1||n==0)
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......
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原因有很多种，比如：
1.数据量过于庞大；死循环
；静态变量和静态方法过多；递归；无法确定是否被引用的对象；
2.虚拟机不回收内存（内存泄漏）；
说白了就是程序运行要用到的内存大于虚拟机能提供的最大内存就发生内存溢出了。
内存溢出的问题要看业务和系统大小而定，对于某些系统� ......
