java£ºÊÖд¶þ²æÊ÷BinaryTreeÌí¼ÓºÍ²éѯ·½·¨
package arrays.myArray;
public class BinaryTree {
private Node root;
// Ìí¼ÓÊý¾Ý
public void add(int data) {
// µÝ¹éµ÷ÓÃ
if (null == root)
root = new Node(data, null, null);
else
addTree(root, data);
}
private void addTree(Node rootNode, int data) {
// Ìí¼Óµ½×ó±ß
if (rootNode.data > data) {
if (rootNode.left == null)
rootNode.left = new Node(data, null, null);
else
addTree(rootNode.left, data);
} else {
// Ìí¼Óµ½ÓÒ±ß
if (rootNode.right == null)
rootNode.right = new Node(data, null, null);
else
addTree(rootNode.right, data);
}
}
// ²éѯÊý¾Ý
public void show() {
showTree(root);
}
private void showTree(Node node) {
if (node.left != null) {
showTree(node.left);
}
System.out.println(node.data);
if (node.right != null) {
showTree(node.right);
}
}
}
class Node {
int data;
Node left;
Node right;
public Node(int data, Node left, Node right) {
this.data = data;
this.left = left;
this.right = right;
}
}
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µÚÒ»²½£º´´½¨JavaÔ´ÂëÎļþ
public class Hello{
static{
System.loa ......
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ÎÒÃÇÔÚ³¢ÏÊ JDK1.5 µÄʱºò£¬ÏàÐŲ»ÉÙÈËÓöµ½¹ý Unsupported major.minor version 49.0
´íÎ󣬵±Ê±¶¨»áãȻ²»ÖªËù´ë¡£ÒòΪ¸Õ¿ªÊ¼ÄÇ»á¶ù£¬ÍøÉÏÓë´ËÏà¹ØµÄÖÐÎÄ×ÊÁÏ»¹²»¶à£¬ÏÖÔÚºÃÁË£¬ÍøÉÏÒ»ÕÒ¾ÍÖªµÀÊÇÈçºÎ½â¾ö£¬´ó¶à»á¸æËßÄãҪʹÓà JDK
1.4 ÖØÐ±àÒë¡£ÄÇôÖÁÓÚΪʲô£ ......
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public static int dayOfWeek(int y, int m, int d) {
int w = 1; // ¹«ÀúÒ»ÄêÒ»ÔÂÒ»ÈÕÊÇÐÇÆÚÒ»£¬ËùÒÔÆðʼֵΪÐÇÆÚÈÕ
y = (y-1)%400 + 1; //&n ......
package arrays.compara;
/**
*
* @author Happy ¶þ·Ö²éÕÒ·¨
*/
public class BinarySearch {
public static void main(String[] args) {
int[] arrInt = { 2, 34, 32, 24, 23, 34, 12, 3, 4, 2 };
int index = bSearch(29, arrInt, 0, arrInt.length);
& ......
package arrays.compara;
import java.util.Arrays;
public class Student {
public static void main(String[] args) {
Stu[] stus = new Stu[]{
new Stu(156,34,"ad"),
new Stu(153,24,"cc"),
new Stu(126,37,"ab"),
......