savioserra

class ConstExample {
  final String someValue;
  
  const ConstExample ({this.someValue});
}

void main() {
  const d = ConstExample(someValue: "teste");
  print(d.hashCode);
  

savioserra

class Example {
  final String someText;
  
  const Example(this.someText);
}

void main() {
  int value = 2;
  value = 3; // Ok, field is not final
  

savioserra

class User {
  final String name;

  User({this.name});
}

/// Exemplo de erro
class UserNotFound implements Exception {}

User getUser() {

savioserra

void main() {
  var shouldSucceed = "ARARA";
  var shouldFail = "ARAR";

  print(isPalindrome(shouldSucceed));
  print(isPalindrome(shouldFail));
}

bool isPalindrome(String testString) {
  var start = 0;

savioserra

void main() async {
  Future<String> processamento = processamentoAsyncrono();
  
  print("calculo que nao depende do resultado acima eh executado imediatamente");
  
  String resultado = await processamento; // ele vai esperar nesse ponto!
  print(resultado);
}

Future<String> processamentoAsyncrono() {

savioserra

// generic callbacks in dart sdk would be very helpfull
// otherwise we should typedef those for every project
// (or maybe i should create a package with this :thinking:)
typedef void IntCallback(int foo);

class AnAwesomeWidget {
  // user can take some action. eg. when switching pages in a PageView
  final IntCallback somethingHappened;
  int someState = 0;

savioserra

type User {
  id: Int! @id(strategy: SEQUENCE) @sequence(name: "users_id_seq", initialValue: 1, allocationSize: 1)
  email: String! @unique
  globoToken: String
  password: String!
  
  team: Team!
  wallet: Wallet! @db(name: "wallet_id") @unique @relation(link: INLINE)

  createdAt: DateTime! @createdAt

savioserra

import pymssql
import pandas as pd

## Hey Look, college data
stmt = "SELECT * FROM AlumniMirror..someTable"

## instance a python db connection object- same form as psycopg2/python-mysql drivers also
with pymssql.connect(server="<server address>", user="<user>",password="<password>", port=63642) as conn:  # You can lookup the port number inside SQL server. 
    # Excute Query here
    df = pd.read_sql(stmt,conn)

savioserra

package niddho.sorting;


import niddho.sorting.core.Sort;

import java.util.concurrent.ThreadLocalRandom;

public class Main {

    private static Integer[] getRandomizedIntegerArray(int arraySize, int randomRange) {

savioserra

#include <stdio.h>
#include <string.h>
#include <mpi.h>

int main (int argc, char** argv)
{
    int stackSize, currentRank;
    char vetor[100];

    MPI_Init(&argc, &argv);