二叉查找树的实现(可执行代码)

import java.util.Scanner;


public class BSTree<AnyType extends Comparable<? super AnyType>>{
	BiNode root;
	class BiNode<AnyType>{
		AnyType data;
		BiNode left;
		BiNode right;
		public BiNode(AnyType data){
			this.data=data;
		}
        public BiNode(AnyType data,BiNode left,BiNode right){
			this.data=data;
			this.left=left;
			this.right=right;
		}
	}
	
	//添加
		public void insert(AnyType x){
			root=insert(x,root);
		}
		public BiNode insert(AnyType x,BiNode t){
		   if(t==null)
			   return new BiNode(x,null,null);
		   int compareResult=x.compareTo((AnyType)t.data); 
		   if(compareResult>0)
			   t.right=insert(x,t.right);
		   if(compareResult<0)
		       t.left=insert(x,t.left);
		   else;
		   return t;
			   
		}
		//找最小
		public AnyType findMin(){		   	
			return (AnyType) findMin(root).data;		
		}
		public BiNode findMin(BiNode t){
			if(t==null)
				return null;
			else if(t.left==null)
				return t;
			else
				return findMin(t.left);
		}
		//删除
		public void remove(AnyType x){
			root=remove(x,root); 
		}
		public BiNode remove(AnyType x,BiNode t){
			if(t==null)
				return t;
			int compareResult=x.compareTo((AnyType)t.data);
			if(compareResult<0)
				t.left=remove(x,t.left);
			else if(compareResult>0)
				t.right=remove(x,t.right);
			    else if(t.left!=null&&t.right!=null){
				t.data=findMin(t.right).data;
			    t.right=remove((AnyType)t.data,t.right);
			    }
			    else
					t=(t.left!=null)?t.left:t.right;

			return t;	
		}
		
		//中序遍历
		public void inOrder(){
			inOrder(root);
		}
		public void inOrder(BiNode t){
			if(t!=null){
				inOrder(t.left);
				System.out.print(t.data+"    ");
				inOrder(t.right);
			}
			
		}
	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		BSTree<Integer> bsh=new BSTree<Integer>();
		for(int i=0;i<6;i++){
			int numble=sc.nextInt();
			bsh.insert(numble);
		}
		bsh.inOrder();
	}

}

posted @ 2014-01-03 17:36  IT专业户  阅读(210)  评论(0编辑  收藏  举报