durgaswaroop

DATASET

* Download dataset at:
* https://drive.google.com/folderview?id=0B8DR8_DnlFdQM0diSnZJNnZTYlE&usp=sharing

CODE

durgaswaroop

Interactive Rebase

git rebase -i HEAD~3 // To pick three commits including HEAD. So, you get HEAD, HEAD^, HEAD^^

squash a commit ig you want to combine two commits as a single one.

Revert a file/folder to a commit

git checkout <commit_hash> -- <file/folder name>

Diff current version of file/folder with the version on another commit

durgaswaroop

private class MyTimer extends CountDownTimer {

	public MyTimer(final long millisInFuture, final long countDownInterval) {
		super(millisInFuture, countDownInterval);
	}

	@Override
	public void onTick(final long milliSecondsStillLeftToFinish) {
		long seconds = milliSecondsStillLeftToFinish / 1000;
		long mins = seconds / 60;

durgaswaroop

From the stack overflow question here, If we have a code like this,

public class testprog {
    static void f (int x) {
        System.out.println ("num is " + (x+0)); // <- step into
    }

    static void g (int x) {
-&gt; f(x); // &lt;----------------------------------- current location

durgaswaroop

Execution failed for task ':app:clean'. Unable to delete file: ...\app\build\intermediates\exploded.....jars\classes.jar

For this File > Invalidate Cache & Restart

durgaswaroop

# Written to calculate value of x such that x**x**x = 10
# Corresponding Quora answer: https://www.quora.com/If-x-x-x-10-what-is-x/answer/DurgaSwaroop-Perla

factor = 100000000

def direction(a, b):
    if abs(a - b) < (a / factor):
        return 0
    elif a - b < 0:
        return -1

durgaswaroop

• Optional.empty() - An empty optional
• Optional.of(t) - returns a present Optional containing t. (t must be non-null)
• Optional.ofNullable(t) - returns an Optional with t that can be null

Rules

1. Never return null from a method that's supposed to return an optional. It defeats the purpose of Optional
2. Never do opt.get() unless you can prove that the optional is present.
3. Prefer alternatives to using opt.isPresent() followed by opt.get()
4. It's generally a bad idea to create an Optional for the sole purpose of chaining methods from it to get a value.
5. If an Optional chain is nested or has an intermediate result of Optional<Optional>, it is probably too complex.

durgaswaroop

from bs4 import BeautifulSoup as bs
import urllib.request as ureq

# Website url
freblogg_url = 'http://freblogg.com'

# Fetch the website
website = ureq.urlopen(freblogg_url).read()

# Parse the html of the site with soup

durgaswaroop

import spark.Request;

import javax.servlet.MultipartConfigElement;
import javax.servlet.ServletException;
import javax.servlet.http.Part;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Path;

durgaswaroop

import tweepy
import os

# Read all the auth keys from environment variables
consumer_key = os.environ["t_consumer_key"] 
consumer_secret = os.environ["t_consumer_secret"] 
access_token = os.environ["t_access_token"]
access_token_secret = os.environ["t_access_token_secret"]

# Using the keys, setup the authorization