binarynode.java

对文本信息进行哈夫曼加密

package wlf;

/**
 * 二叉节点类，元素类型未定
 */
import java.io.Serializable;

public class BinaryNode<E> implements Serializable{
	/**
	 * 
	 */
	private static final long serialVersionUID = 3677625897095376784L;
	private E item;
	private BinaryNode<E> left;
	private BinaryNode<E> right;
	
	public BinaryNode(){}
	public BinaryNode(E item)
	{
		this.item=item;
	}
	public BinaryNode(E item,BinaryNode<E>left,BinaryNode<E>right)
	{
		this.item=item;
		this.left=left;
		this.right=right;
	}
	/**
	 * @return the item
	 */
	public E getItem() {
		return item;
	}
	/**
	 * @param item the item to set
	 */
	public void setItem(E item) {
		this.item = item;
	}
	/**
	 * @return the left
	 */
	public BinaryNode<E> getLeft() {
		return left;
	}
	/**
	 * @param left the left to set
	 */
	public void setLeft(BinaryNode<E> left) {
		this.left = left;
	}
	/**
	 * @return the right
	 */
	public BinaryNode<E> getRight() {
		return right;
	}
	/**
	 * @param right the right to set
	 */
	public void setRight(BinaryNode<E> right) {
		this.right = right;
	}
	/**
	 * 
	 * @return 判断是否为叶节点
	 */
	public boolean isLeaf(){
		return (left==null && right==null) ;
	}
}