kariyayo

Scala入門ハンズオンの資料

こちらの勉強会で使った資料です -> http://sscala.connpass.com/

Scala入門ハンズオン

Scalaのバージョンは 2.11.1 でやりました。

Day1

• val

kariyayo

import rx.subjects.BehaviorSubject;

public class DataBindingSample {

    public void start() {
        ViewModel viewModel = new ViewModel("default");

        View view1 = new View();
        System.out.println("######################");
        System.out.println("view1: " + view1.value);

kariyayo

package main

import (
    "errors"
    "fmt"
    "io/ioutil"
    "log"
    "net/http"

    "golang.org/x/oauth2"

kariyayo

function create_insert() {
  var headerRowIndex = 1;
  var firstValuesRowIndex = headerRowIndex + 1;
  var range = SpreadsheetApp.getActiveRange();
  var cells = range.getValues();
  var numRows = range.getNumRows();
  var numColumns = range.getNumColumns();

  var tableName = cells[0][0];

kariyayo

function! PostSlackTimes(surround)
    let tmp = @@
    silent normal gvy
    let selected = @@
    let @@ = tmp
    let text = substitute(selected, "\n", '\n', "g")
    let ret = system("curl -X POST -H 'Content-type: application/json' --data '{\"text\": \"" . a:surround . text . a:surround . "\"}'"
                \ . " 'https://hooks.slack.com/services/<TOKEN>'")
endfunction

kariyayo

unmap "t"
map "ctrl+f" scrollPageDown
map "ctrl+b" scrollPageUp

map "[ t" previousTab
map "] t" nextTab
map "[ T" firstTab
map "] T" lastTab

kariyayo

# coding: utf-8

import sys
import datetime
import re
import requests
import twitter
from datetime import datetime

GITHUB_USER = "hoge"

kariyayo

case class User(id: Int, email: String, name: String, age: Option[Int], address: Option[String])

def selectUsers: DBIO[Seq[User]] = sql"""
  SELECT
    id,
    email,
    name,
    age,
    address
  FROM

kariyayo

public class Main {
    public static void main(String[] args) {
        System.out.println(flatMapRoutine());
        System.out.println(nonFlatMapRoutine());
    }

    private static Optional<Pole> flatMapRoutine() {
        return new Pole(0, 0).landLeft(1)
                .flatMap(x -> x.landRight(4))
                .flatMap(x -> x.landLeft(-1))

kariyayo

@Configuration
public class DatabaseConfig {

    @Bean
    public DataSource ds1() {
        org.apache.tomcat.jdbc.pool.DataSource ds = new org.apache.tomcat.jdbc.pool.DataSource();
        ds.setDriverClassName("driverName");
        ds.setUrl("url");
        ds.setUsername("username");
        ds.setPassword("password");