Zheng Mingzhi (AI码士) zhmz1326

🤠

look ahead

An engineer living in Hangzhou, China. I love Java and Python.

zhmz1326 / RSATest.java

Created April 14, 2017 06:59

Show how to create a BCRSAPrivateCrtKey instance by Java Reflect API

	import java.lang.reflect.Constructor;
	import java.lang.reflect.Field;
	import java.math.BigInteger;

	import org.bouncycastle.crypto.DataLengthException;
	import org.bouncycastle.crypto.params.RSAPrivateCrtKeyParameters;
	import org.bouncycastle.jcajce.provider.asymmetric.rsa.BCRSAPrivateCrtKey;

	public class RSATest {

zhmz1326 / compress.java

Created March 29, 2017 09:44

Compress a directory to a zip stream using commons-compress and java

	public static void compressZipfile(String sourceDir, OutputStream os) throws IOException {
	ZipOutputStream zos = new ZipOutputStream(os);
	compressDirectoryToZipfile(sourceDir, sourceDir, zos);
	IOUtils.closeQuietly(zos);
	}

	private static void compressDirectoryToZipfile(String rootDir, String sourceDir, ZipOutputStream out) throws IOException, FileNotFoundException {
	File[] fileList = new File(sourceDir).listFiles();
	if (fileList.length == 0) { // empty directory / empty folder
	ZipEntry entry = new ZipEntry(sourceDir.replace(rootDir, "") + "/");

zhmz1326 / sigmoid_plot.py

Created November 16, 2015 05:15

Draw sigmoid function by matplotlib

	sigmoid = lambda x: 1 / (1 + np.exp(-x))
	x=linspace(-10,10,10)
	y=linspace(-10,10,100)
	plot(x,sigmoid(x),'r', label='linspace(-10,10,10)')
	plot(y,sigmoid(y),'b', label='linspace(-10,10,100)')
	grid()
	xlabel('X Axis')
	ylabel('Y Axis')
	title('Sigmoid Function')
	suptitle('Sigmoid')

zhmz1326 / index.html

Created August 9, 2015 08:15

Practice from Dotinstall: Angular v1.4.3 http://dotinstall.com/lessons/basic_angularjs

	<!DOCTYPE html>
	<html lang="js" ng-app="testApp">
	<head>
	<meta charset="utf-8">
	<title>Angular Practice</title>
	<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.3/angular.min.js"></script>
	<script src="myscript.js"></script>
	<style>
	.even {
	background: #ccc;

zhmz1326 / csvDuplicateCheck.py

Created July 22, 2015 05:57

Check duplicate by key in csv file, and then print the duplicate lines out.

	import codecs

	filename = 'input.csv'
	# fr = open(filename)
	fr = codecs.open(filename,"r","shift_jis")
	lines = fr.readlines()

	lines.sort()

	dict = {}