guohai

#include <stdio.h>
#include <stdlib.h>

struct SBinaryTreeNode // a node of the binary tree
{
	int               m_nValue; // value of node
	struct SBinaryTreeNode  *m_pLeft;  // left child of node
	struct SBinaryTreeNode  *m_pRight; // right child of node
};

guohai

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// for Linux platform, plz make sure the size of data type is correct for BMP spec.
// if you use this on Windows or other platforms, plz pay attention to this.
typedef int LONG;
typedef unsigned char BYTE;
typedef unsigned int DWORD;
typedef unsigned short WORD;

guohai

#!/bin/sh

# base directory, at top of source tree; replace with absolute path
base=`pwd`

# configure root dir of interesting stuff
root=$base/out/host/linux-x86
export ANDROID_ROOT=$root

# configure bootclasspath

guohai

#define DECLARE_ENUM(E) struct E { public: E(int value = 0) : _value((__Enum)value) { } E& operator=(int value) { this->_value = (__Enum)value; return *this; } operator int() const { return this->_value; } enum __Enum {
#define END_ENUM() }; private: __Enum _value; };

#include <iostream>

using namespace std;

class B {
    B &operator=(const B &);
};

guohai

import android.graphics.PointF;
import android.view.animation.Animation;
import android.view.animation.Transformation;

// http://www.math.ubc.ca/~cass/gfx/bezier.html

public class ArcTranslateAnimation extends Animation {
	private int mFromXType = ABSOLUTE;
	private int mToXType = ABSOLUTE;

guohai

// javap -c -l AutoIncrementDemo

Compiled from "AutoIncrementDemo.java"
public class AutoIncrementDemo extends java.lang.Object{
public AutoIncrementDemo();
  Code:
   0:	aload_0
   1:	invokespecial	#1; //Method java/lang/Object."<init>":()V
   4:	return

guohai

/**
 * 将数组分三块，中间一块是pivot[就一个元素]，左边一块是所有元素都小于pivot，右边一块是所有元素都大于pivot<br />
 * 快速排序的基础，简单易懂，居家旅行面试必备
 */
public class ArrayPartition {
	public static void main(String[] args) {
		int[] arr = { 4, 5, 3, 22, 1, 3 };
		printArray(arr, "init");
		System.out.println("pivot idx " + sort(arr, 0, arr.length - 1));
		printArray(arr, "result");

guohai

public class ThreadWaitSleepDemo {
	public static void main(String[] args) {
		// wait，notify，notifyAll三个方法都有共同点
		// The current thread must own this object's monitor.

		ThreadWaitSleepDemo obj = new ThreadWaitSleepDemo();

		new S(obj).start();

		try {

guohai

import java.util.concurrent.CountDownLatch;

import org.apache.commons.lang.math.RandomUtils;

public class MultipleThreadCalSum {

	public static void main(String[] args) {

		final int M = 10000000; // 10万个元素
		final int N = 100; // 100个线程

guohai

package org.xkit.mail.demo;

import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class MailAttachmentFilenameDemo {

	public static void main(String[] args) {