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Studying for a Tech Interview Sucks, so Here's a Cheat Sheet to Help

This list is meant to be a both a quick guide and reference for further research into these topics. It's basically a summary of that comp sci course you never took or forgot about, so there's no way it can cover everything in depth. It also will be available as a gist on Github for everyone to edit and add to.

Data Structure Basics

###Array ####Definition:

• Stores data elements based on an sequential, most commonly 0 based, index.
• Based on tuples from set theory.

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/* Programmer Name:Yulanda McCruter 
Project Name:Project4
Course:CIS1500 Wednesday 6:00 p.m.
Date of Completion:October 10, 2015
Purpose Statement:This program will calculate the customers new balance and display the new balance
in a dialog box to determine if the customer has exceeded their credit limit.
*/

import javax.swing.JOptionPane; // import JOptionPane to make dialogs for user

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// Global scope statements
EditText editHeight = (EditText) findViewById(R.id.set_height);

public int getHeight() throws HeightInputException {
  String heightInput = editHeight.getText().toString().replaceAll("\\s","");
  int ftInd = heightInput.indexOf("'");
  int inches = 0;
  if(ftInd!=-1){
    int feet = 0; 
    try {

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private SharedPreferences sPref;
private final String PREFS = "SharedPreferences";
private final String genderKey = "gender";
private final String activityKey = "activity_level";
private final String timeKey = "time_frame";
private final String nameKey = "name";
private final String ageKey = "age";
private final String heightKey = "height";
private final String weightKey = "weight";
private final String goalKey = "target";

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HashMap<String,String> map = new Map()<>;
map.put(“type”,doc.get(“type”));
map.put(“subtype”,doc.get(“subtype”));
ArrayList<View> list = new ArrayList<>();
// when showing View, add to list
list.add((View)findViewById(R.id.RepsText));
…
for( View v : list) {
  switch(v.getId()){
    case(R.id.RepsText):

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// Java Hello World
public class HelloWorldExample
{
  public static void main(String[] args)
  {
    System.out.println("Hello World!");
  }
}

## Python Hello World

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HAI
CAN HAS STDIO?
VISIBLE "Hello World!"
KTHXBYE

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// Bonfire: Check for Palindromes
// Author: @mtroiani
// Challenge: http://www.freecodecamp.com/challenges/bonfire-check-for-palindromes
// Learn to Code at Free Code Camp (www.freecodecamp.com)

function palindrome(str) {
  str = str.toLowerCase().replace(/[^\w]|_/g, "");
  return (str === str.split("").reverse().join(""));
}

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from selenium import webdriver
from collections import deque
import threading

class AccountManager():
  def __init__(self):
    self.login = []
    self.emails= []
    self.log = deque([])
    self.IWT=5

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function selectRangeByCorrespondingChar(c1,c2,char) {
  var n=[], c=0;
  for(var i in c1){
    if(i===char){
      n.push(c2[c]);
    } c++;
  }
  return n;
}