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good[(good$Ozone > 31) & (good$Temp > 90), ]

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public List<ContributorCount> getContributorCounts(){
    List<ArticleView> articleViews = getArticleViews(); 
    
    return articleViews
            .map(a -> a.contributor)        //Get the contributor names from the article views
            .sort(Ord.stringOrd)            //Need to sort before grouping
            .group(Equal.stringEqual)       //Group by contributor name
            .filter(l -> l.length() > 1)    //remove any contributors who only appear once
            .map(l -> new ContributorCount(l.head(), l.length())); //Map to the return type
}

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public List<ContributorCount> getContributorCounts() {
    List<ArticleView> articleViews = getArticleViews();

    //First iterate over the articles counting the occurrences of
    //each contributor
    HashMap<String, Integer> contributorCounts = new HashMap<String, Integer>();
    for (ArticleView articleView : articleViews) {
        Integer count = contributorCounts.get(articleView.contributor);
        if (count == null)
            contributorCounts.put(articleView.contributor, 1);

rupertbates

public class Article {
    
    DisplayImage mainImage;
    
    //Rest of the class declaration
    
    public DisplayImage getMainImage(){
        //What happens if there is no main image on this article?
        return mainImage;
    }

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//Imperative style of dealing with an Option type
if(article.getMainImage().isSome())
    setArticleImage(article.getMainImage().some());

//Functional approach using map
article.getMainImage().map(this::setArticleImage);

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//Checking for null through an object graph quickly becomes unwieldy
if (article.getContributor() != null &&
        article.getContributor().getImage() != null &&
        article.getContributor().getImage().getSize() != null) {

    Size size = article.getContributor().getImage().getSize();
    setContributorImageSize(size.getWidth(), size.getHeight());
}

//Chaining multiple optional values using bind and map

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findViewById(R.id.myView).setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        handleClick();
    }
});

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#!/bin/bash

for i in $( ls $1 ); do
    echo Removing: $2$i
    rm $2$i
done

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[.[]|select(.fields.starRating == "4")]

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{
  "response": {
    "status": "ok",
    "userTier": "developer",
    "total": 15895,
    "startIndex": 1,
    "pageSize": 10,
    "currentPage": 1,
    "pages": 1590,
    "orderBy": "newest",