exhesham

private final Lock lock = new ReentrantLock(isFair);

// usage:
try{
  lock.lock();
 // Do some stuff 
  
} finally{
  lock.unlock();
}

exhesham

public class RunnableJob implements Runnable{
        @Override
        public void run() {

        }
    }
public void runJobs(){
    CompletableFuture<Void> f = CompletableFuture.runAsync(new RunnableJob());
    f.thenRun(new RunnableJob());

exhesham

public class FilterLogin implements Filter {
  public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain){
    // inject cookie
    Cookie c = getCookie(httpServletResponse, "WASReqURL");
    if(c  == null){
      // inject the cookie if it is not there
			c = new Cookie("WASReqURL", "");
			httpServletResponse.addCookie(c);	
		}
    String newUrl = "/my_action_servlet";

exhesham

Uri builtUri = Uri.parse(BASE_URL).buildUpon()
        // add various params
        .appendQueryParameter(PARAM_QUERY, githubSearchQuery)
        .appendQueryParameter(PARAM_SORT, sortBy)
        // build the uri
        .build();

// Convert the Uri to a URL:
URL url = null;
try {

exhesham

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // COMPLETED (9) Within onCreateOptionsMenu, use getMenuInflater().inflate to inflate the menu
    getMenuInflater().inflate(R.menu.main, menu);
    // COMPLETED (10) Return true to display your menu
    return true;
}

exhesham

public class MainActivity extends AppCompatActivity { 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
       super.onCreate(savedInstanceState); 
       setContentView(R.layout.activity_main); 
       // other code to setup the activity 
    } 
    // other code 
} 

exhesham

  /* 
 * Iterate through the array and append the Strings to the TextView. The reason why we add 
 * the "\n\n\n" after the String is to give visual separation between each String in the 
 * TextView. Later, we'll learn about a better way to display lists of data. 
 */ 
for (String toyName : toyNames) { 
    mToysListTextView.append(toyName + "\n\n\n"); 
} 

exhesham

<ScrollView
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/tv_weather_data"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="16dp"
        android:textSize="20sp" />

exhesham

- kind: ReplicationController
  apiVersion: v1
  metadata:
    name: bad-frontend
    labels:
      name: bad-frontend
  spec:
    replicas: 1
    selector:
      name: bad-frontend

exhesham

Function<String, Predicate<Ticket>> ticketFor = event -> ticket -> event.equals(ticket.getName());
List<Ticket> tickets = getAllTickets();
Integer soldTicketsForCoolEvent = tickets.stream()
  .filter(ticketFor.apply("CoolEvent")).count();