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41 lines
1.1 KiB
41 lines
1.1 KiB
/**
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* File: binary_tree.java
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* Created Time: 2022-11-25
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* Author: krahets (krahets@163.com)
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*/
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package chapter_tree;
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import utils.*;
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public class binary_tree {
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public static void main(String[] args) {
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/* 初始化二叉树 */
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// 初始化节点
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TreeNode n1 = new TreeNode(1);
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TreeNode n2 = new TreeNode(2);
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TreeNode n3 = new TreeNode(3);
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TreeNode n4 = new TreeNode(4);
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TreeNode n5 = new TreeNode(5);
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// 构建节点之间的引用（指针）
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n1.left = n2;
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n1.right = n3;
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n2.left = n4;
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n2.right = n5;
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System.out.println("\n初始化二叉树\n");
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PrintUtil.printTree(n1);
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/* 插入与删除节点 */
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TreeNode P = new TreeNode(0);
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// 在 n1 -> n2 中间插入节点 P
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n1.left = P;
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P.left = n2;
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System.out.println("\n插入节点 P 后\n");
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PrintUtil.printTree(n1);
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// 删除节点 P
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n1.left = n2;
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System.out.println("\n删除节点 P 后\n");
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PrintUtil.printTree(n1);
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}
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}
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