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abstract class BaseViewModel : ViewModel() {


    protected val defaultErrorHandler: (Throwable) -> Unit by lazy {
        { throwable: Throwable ->
            Log.e(javaClass.simpleName, "DefaultErrorHandler", throwable)
            Unit
        }
    }
    private val defaultCompleteHandler: () -> Unit by lazy { {} }

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public class Dog implements Serializable {

    private String name;


    public Dog(String name) {
        this.name = name;
    }

    public String getName() {

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import argparse
import os
parser = argparse.ArgumentParser("")
parser.add_argument('--target-branch', required=True)
args = parser.parse_args()

command = "git diff {target_branch} --name-status".format(target_branch=args.target_branch)
diffs = os.popen(command).read()

for current_file in diffs.splitlines():

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Observable.just("Hey")
    .subscribeOn(Schedulers.io())
    .map(String::length)
    .subscribeOn(Schedulers.computation())
    .observeOn(AndroidSchedulers.mainThread())
    .doOnSubscribe { doAction() }
    .flatMap {
        doAction()
        Observable.timer(1, TimeUnit.SECONDS)
            .subscribeOn(Schedulers.single())

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    int indexOf(Object key, int hash) {
        ...                                   
        //next available position for our element = 0
        //to show, that we don't have this key, will execute ~0, which is equal -1
        int index = binarySearchHashes(mHashes, N, hash);


        if (index < 0) {
          // hash code not found, "put" operation
            return index;

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oldSize+(oldSize>>1) 
//4->8->12->18->27->...

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...
index = ~index;  //~-1 == 0
...
mHashes[index] = hash;
mArray[index<<1] = key; //Xor 0 == 0
mArray[(index<<1)+1] = value; //Xor 0 + 1 == 1
mSize++;

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val user2 = User(id = 9986, name = "Diane Nguyen")
val key = Key(user2.name)
map[key] = user

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val user3 = User(id = 2508, name = "Penny Carson") //hashCode will be 12
val key = Key(user3.name)
map[key] = user

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data class User(val id: Int, val name: String)

data class Key(val name: String) {
   //bad hashCode, for demonstration
   override fun hashCode() = name.length
}

val map = ArrayMap<Key, User>()
val user = User(1507, "Bojack Horseman")
val key = Key(user.name)