发布时间 : 2024/5/15 4:21:16 星期三 文章学位论文-—双向循环链表的创建及相关操作的实现课程设计说明书更新完毕开始阅读1738a958bdd126fff705cc1755270722182e5960

山东建筑大学计算机学院课程设计说明书

return data; }

public double getWight() { return weight; }

@Override

public int compareTo(BiTNode o) { if (o.getWight() > this.getWight()) return 1;

if (o.getWight() < this.getWight()) return -1; return 0; } }

2.BinaryTree()构造 package kcsj;

import java.util.LinkedList; import java.util.Queue;

public class BinaryTree> { AnyType[] pre, in;

BiTNode rootNode = new BiTNode(); int count = 0;

public BinaryTree() { rootNode = null; }

public BinaryTree(AnyType rootNodeItem) { rootNode.data = rootNodeItem;

rootNode.left = rootNode.right = null; }

public BinaryTree(BiTNode t) { rootNode = t; }

//1. 先序遍历建树

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山东建筑大学计算机学院课程设计说明书

public BiTNode creatTree(AnyType[] a) { return rootNode = creatBinaryTree(a); }

private BiTNode creatBinaryTree(AnyType[] a) { BiTNode p = null; if (count < a.length) {

AnyType data = a[count]; count++;

if (data != null) {

p = new BiTNode((AnyType) data); p.left = creatTree(a); p.right = creatTree(a); } }

return p;

}

//1.层次遍历排序建树

public void creatPathTree(AnyType[] a) { if (a != null) {

creatPathBinaryTree(a);

} }

private void creatPathBinaryTree(AnyType[] a) {

Queue> q = new LinkedList>(); BiTNode node = new BiTNode(a[0]); rootNode = node; q.offer(node); int i = 1;

while (i < a.length) {

if (a[i] != null) {

node = new BiTNode(a[i]); q.element().left = node; q.offer(q.element().left); }

if (i < a.length - 1) {

if (a[++i] != null) {

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山东建筑大学计算机学院课程设计说明书

}

}

}

node = new BiTNode(a[i]); q.element().right = node; q.offer(q.element().right); }

q.poll(); i++;

//2.实现二叉树的层次遍历 public void pathOrder() { if (rootNode != null) pathOrder(rootNode); }

public void pathOrder(BiTNode t) {

Queue> q = new LinkedList>(); q.offer(t);

while (!q.isEmpty()) {

if (q.element().left != null) q.offer(q.element().left); if (q.element().right != null) q.offer(q.element().right);

System.out.print(q.poll().data + \);

}

}

// 先序遍历

public void preOrder() { if (rootNode != null) preOrder(rootNode); }

private void preOrder(BiTNode t) { if (t != null) {

System.out.print(t.data+\);

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山东建筑大学计算机学院课程设计说明书

preOrder(t.left); preOrder(t.right); }

}

// 统计节点的个数

public int countNode() {

return countNode(rootNode); }

private int countNode(BiTNode t) { int m, n;

if (t == null) return 0;

m = countNode(t.left); n = countNode(t.right); return m + n + 1; }

// 3.统计叶子节点个数（递归） public int countLeafNode() {

return countLeafNode(rootNode); }

private int countLeafNode(BiTNode t) { int m = 0, n = 0; if (t == null) return 0;

if (t.left == null && t.right == null) { return 1; }

m = countLeafNode(t.left); n = countLeafNode(t.right); return m + n; }

// 4.将二叉树左+右子树相互交换（递归） public void exchangeTree() { if (rootNode != null) {

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