danielrobertson

boolean isPalindrome(String s) { 
	for(int front = 0, end = s.length() - 1; front <= end; front++, end--) {
		if(s.charAt(front) != s.charAt(end)) {
			return false; 				
		}
	}

	return true; 
}

danielrobertson

/**
 * Created by daniel robertson on 9/6/15.
 */
import java.io.*;
import java.util.*;
import java.lang.StringBuffer;

public class NumberOfPalindromicSubstrings {
    static int palindrome(String str) {
        int result = 0;

danielrobertson

Assumptions: 
  - Sublime has been installed under Applications/ and that the application subl exists at /Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl
  - /usr/loca/bin is in your PATH. You can verify this by viewing the contents of your path by running 'cat /etc/paths'
  
Run 'sudo ln -s "/Applications/Sublime\ Text\ 2.app/Contents/SharedSupport/bin/subl" /usr/local/bin/subl'

danielrobertson

class Multiton {
	static HashMap<String, Multiton> map = new HashMap<String, Multiton>(); 
	
	private Multiton(String key) { ... }
	
	static Multiton newMultion(String key) {
		result = map.get(key); 
		if(result == null) {
			result = new Multiton(key); 
			map.add(key, result); 

danielrobertson

[user]
	name = Daniel Robertson
	email = [email protected]

[alias]
  p = pull 
  a = add
  st = status
  ci = commit
  br = branch

danielrobertson

import pandas as pd
toclean = pd.read_csv('fileWithDuplicates.csv')
deduped = toclean.drop_duplicates('columnName')
deduped.to_csv('fileWithoutDuplicates.csv')

danielrobertson

{
    "registration": {
        "children": [
            {
                "firstName": "joe",
                "lastName": "bro",
                "dob": "11 march 1990"
            },
            {
                "firstName": "jay",

danielrobertson

// load the MySQL driver. Alternatively, use the Maven http://mvnrepository.com/artifact/mysql/mysql-connector-java/5.1.33
Class.forName("com.mysql.jdbc.Driver");

// connect to database named openstack_projects on port 3306
String url = "jdbc:mysql://localhost:3306/openstack_projects";
Connection conn = DriverManager.getConnection(url, "root", "");

// make a query
String sql = "select * from projects";
PreparedStatement preparedStatement = conn.prepareStatement(sql);

danielrobertson

// create file:
sudo vim /usr/share/applications/intellij.desktop
 
// add the following
[Desktop Entry]
Version=13.0
Type=Application
Terminal=false
Icon[en_US]=/home/daniel/idea-IC-135.690/bin/idea.png
Name[en_US]=IntelliJ

danielrobertson

def z_score(n, l): 
	mean = sum(l) / len(l)
	return (n - mean) / (stddev(l) / math.sqrt(len(l)))