DavyLin

import android.os.Environment;
import android.support.annotation.NonNull;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.concurrent.TimeUnit;

DavyLin

==>sudo xcode-select -switch /Applications/Xcode.app
==>cd ~/.cocoapods/repos
==>git clone https://github.com/CocoaPods/Specs.git master
==>it must show:
Cloning into 'master'...
remote: Counting objects: 855220, done.
remote: Compressing objects: 100% (3211/3211), done.
remote: Total 855220 (delta 1424), reused 0 (delta 0), pack-reused 851785
Receiving objects: 100% (855220/855220), 342.79 MiB | 1.04 MiB/s, done.

DavyLin

  > cd ~/.ssh
  > sudo wget http://curl.haxx.se/ca/cacert.pem
  > export CURL_CA_BUNDLE=~/.ssh/cacert.pem

DavyLin

Elasticsearch: updating the mappings and settings of an existing index

Note: This was written using elasticsearch 0.9.

Elasticsearch will automatically create an index (with basic settings and mappings) for you if you post a first document:

$ curl -X POST 'http://localhost:9200/thegame/weapons/1' -d \
'{
  "_id": 1,

DavyLin

class MethodInLowSdk{
    public static void aMethod();
};

class MethodInHighSdk{
    public static void aMethod();
}

void CallAMethodByVersion(){
    if(android.os.Build.VERSION.SDK_INT > low_sdk){

DavyLin

on run {targetBuddyPhone, targetMessage, repeatCount}
    tell application "Messages"
        set targetService to 1st service whose service type = iMessage
        set targetBuddy to buddy targetBuddyPhone of targetService
        set myCount to repeatCount as integer
        repeat myCount times
            send targetMessage to targetBuddy
        end repeat
    end tell
end run

DavyLin

public class FizzTest {
    public static void main(String[] args) {
        String string = "";
        String[] nums = new Scanner(System.in).next().split(",");
        for (int i = 1; i <= 100; i++) {
            if (String.valueOf(i).indexOf(nums[0]) != -1) {
                string += "Fizz";
            } else {
                if (i % Integer.parseInt(nums[0]) == 0) {
                    string += "Fizz";

DavyLin

var a = 'hello';
var b = new String('hello');
a + b; // 'hello hello'

typeof a;  // 'string'
typeof b;  // 'object'
a instanceof String; //false
b instanceof String; // true

a.substr == b.substr;  //true

DavyLin

ExecutorService  service=Executors.newFixedThreadPool(Integer.valueOf(poolThreadNum.toString()));
CountDownLatch downlatch= new CountDownLatch(Integer.valueOf(poolThreadNum.toString()));
CountDownLatch sucess_downlatch=new CountDownLatch(Integer.valueOf(poolThreadNum.toString()));

DavyLin

#!/bin/ruby

if __FILE__ == $0
  vars = {}
  Dir.glob("**/*") do |name|
    if File.file? name and name =~ /\.clj$/
      File.open(name,"r") do |f|
        content = f.read
        if content =~ /environ.core/
          content.scan(/\(env :([a-zA-Z\-]+) ("([^\)]+)")?\)/).each do |matches|