quydm

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;

public class ReadFileLineByLine {

    public static void readFile(String fileName) {
        try {
            BufferedReader br = new BufferedReader(new FileReader(fileName));

quydm

<?php

/*
* I have many .mp3 files with naming rule is: <song's name> - <singer's name> [MP3 320kbps].mp3. Ex: Dao Nguyen - NSUT Thuy Huong [MP3 320kbps].mp3
* I want to rename them using new naming rule is: <song's name>.mp3. Ex: Dao_Nguyen.mp3
*/

date_default_timezone_set('Asia/Ho_Chi_Minh');

$dir = "directory";

quydm

#include <stdio.h>
#include <string.h>
#include "base64.h"
#include "xxtea.h"

int main(int argc, const char * argv[]) {
    const char *key = "123456";
    const char *str = "Lorem ipsum dolor sit amet, consectetur adipiscing elit";
    size_t len;
    

quydm

#include <stdio.h>
#include <string.h>
#include "xxhash.h"

int main(int argc, const char * argv[]) {
    const char *str = "Lorem ipsum dolor sit amet, consectetur adipiscing elit";
    unsigned int sum = XXH32(str, strlen(str), 0);
    printf("hash: %08x\n", sum);
    
    return 0;

quydm

/**
 * @author quydm
 */
public class StringUtils {

    public static final String EMPTY_STRING = "";

    public static String join(Object[] array, String separator) {
        return join(array, separator, 0, array.length);

quydm

import android.Manifest;
import android.app.Fragment;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import android.support.v4.content.ContextCompat;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

quydm

<?php

$file = 'dimens.xml';
$ratio = 1;// change ratio with screen density. Example: ratio = 1 for values, 1.5 for values-hdpi or values-sw600dp
$tab_size = '    ';

$str = '<?xml version="1.0" encoding="utf-8"?>' . PHP_EOL;
$str .= '<resources>' . PHP_EOL . PHP_EOL;
for ($i = 1; $i <= 600; $i ++)
	$str .= $tab_size . '<dimen name="n' . $i . 'dp">' . ($i * $ratio) . 'dp</dimen>' . PHP_EOL;

quydm

try {
    PackageInfo info = getPackageManager().getPackageInfo(getPackageName(), 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));
    }
} catch (NameNotFoundException e) {
    e.printStackTrace();
} catch (NoSuchAlgorithmException e) {