hu2di

public class Singleton {
  
  private static final Singleton instance = new Singleton();
  
  private Singleton() {
  }
  
  public static Singleton getInstance() {
    return instance;
  }

hu2di

private void getKeyHash() {
    try {
        PackageInfo info = getPackageManager().getPackageInfo(
                "your Application Id",
                PackageManager.GET_SIGNATURES);
        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
        }

hu2di

public String getRealPathFromURI(Context context, Uri contentUri) {
    Cursor cursor = null;
    try {
        String[] proj = {MediaStore.Images.Media.DATA};
        cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    } finally {
        if (cursor != null) {

hu2di

public class MySubString {  

     public static void main(String args[]) {  
          String s1="HuyHung";  
          System.out.println(s1.substring(2,4));//return yH
          System.out.println(s1.substring(2));  //return yHung  
     }
} 

hu2di

public static void printNameOfVideos(Context context) {
    Uri uri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
    String[] projection = { MediaStore.Video.VideoColumns.DATA };
    Cursor c = context.getContentResolver().query(uri, projection, null, null, null);
    int vidsCount = 0;
    if (c != null) {
        vidsCount = c.getCount();
        while (c.moveToNext()) {
            Log.d("VIDEO", c.getString(0));
        }

hu2di

<script>
    window.fbAsyncInit = function() {
        FB.init({
            appId    :    'your facebook app id',
            xfbml    :    true,
            version:    'v2.6'
        });
    };
    (function(d, s, id) {
        var js, fjs = d.getElementsByTagName(s) [0];

hu2di

function removeVietnameseTones(str) {
    str = str.replace(/à|á|ạ|ả|ã|â|ầ|ấ|ậ|ẩ|ẫ|ă|ằ|ắ|ặ|ẳ|ẵ/g,"a"); 
    str = str.replace(/è|é|ẹ|ẻ|ẽ|ê|ề|ế|ệ|ể|ễ/g,"e"); 
    str = str.replace(/ì|í|ị|ỉ|ĩ/g,"i"); 
    str = str.replace(/ò|ó|ọ|ỏ|õ|ô|ồ|ố|ộ|ổ|ỗ|ơ|ờ|ớ|ợ|ở|ỡ/g,"o"); 
    str = str.replace(/ù|ú|ụ|ủ|ũ|ư|ừ|ứ|ự|ử|ữ/g,"u"); 
    str = str.replace(/ỳ|ý|ỵ|ỷ|ỹ/g,"y"); 
    str = str.replace(/đ/g,"d");
    str = str.replace(/À|Á|Ạ|Ả|Ã|Â|Ầ|Ấ|Ậ|Ẩ|Ẫ|Ă|Ằ|Ắ|Ặ|Ẳ|Ẵ/g, "A");
    str = str.replace(/È|É|Ẹ|Ẻ|Ẽ|Ê|Ề|Ế|Ệ|Ể|Ễ/g, "E");

hu2di

//nstallation:
//npm install --save xml2js
//Usage:
//Read XML
var returnJSONResults = function(baseName, queryName) {
    var XMLPath = "data.xml";
    var rawJSON = loadXMLDoc(XMLPath);
    function loadXMLDoc(filePath) {
        var fs = require('fs');
        var xml2js = require('xml2js');

hu2di

#include<stdio.h>
int main()
{
    char input[200];
    while(1)
    {
        printf("\n\n");
        gets(input);
        printf(input);
    }

hu2di

 int n;
            n = int.Parse(Console.ReadLine());
            double sum = 0.0;
            for (int iCount = 1; iCount <= n; iCount++)
            {
                sum = sum + 1 / iCount;
            }
            Console.WriteLine("Ket qua: {0}", sum);