hanaori

public class UniqunessCheck {
	public boolean isUnique(String str){
		boolean isUnique = true;
		for(int i = 0; i < str.length(); i++){
			for(int k = 0; k < str.length(); k++){
				if(i != k){
					if(str.charAt(i).equals(str.charAt(k))){
						isUnique = false;
						break;
					}

hanaori

public boolean isUnique(String str) {
	boolean isUnique = true;
	HashSet<Character> hs = new HashSet<>();
	for(char c: str.toCharArray()){
		if(!hs.contains(c)){
			hs.add(c);
		}else{
			isUnique = false;
			break;
		}

hanaori

public class FizzBuzz {
	public void getResultOfFizzBuzz(){
		for(int i = 1; i <= 100; i++){
			if(calcRemainder(i, 3) == 0 && calcRemainder(i, 5) == 0){
				System.out.println("FizzBuzz");
			}else if(calcRemainder(i, 3) == 0){
				System.out.println("Fizz");
			}else if(calcRemainder(i, 5) == 0){
				System.out.println("Buzz");
			}else{

hanaori

public int fibonacci(int n){
	if(n == 0) return 0;
	if(n == 1 || n == 2) return 1;		
	return fibonacci(n - 2) + fibonacci(n - 1);
}

hanaori

# 以下２つのファイルを require する
require "rails_admin/config/actions"
require "rails_admin/config/actions/base"
 
module RailsAdmin
    module Config
        module Actions
            class DisplayOrderAction < RailsAdmin::Config::Actions::Base
                RailsAdmin::Config::Actions.register(self)
 

hanaori

# 先頭で使用するファイルを require する
require Rails.root.join('lib', 'display_order_action.rb')
  
RailsAdmin.config do |config|
    config.actions do
        dashboard                     # mandatory
        index                         # mandatory
        new
        export
        bulk_delete

hanaori

<%= form_tag("", method: "put") do %>
    <table class="table table-striped　table-bordered">
        <tr>
            <th>Name</th>
            <th>Order</th>
        </tr>
        <% @objects.each do |object| %>
            <tr>
                <td><%=object.name%></td>
                <td><input type="number" value="<%=object.order%>" name="products[][order]"></td>

hanaori

# ほぼオリジナルのパクリ（https://github.com/sferik/rails_admin/blob/master/lib/rails_admin/config/actions/edit.rb）
# 今回必要になる部分を追記する
 
module RailsAdmin
  module Config
    module Actions
      class Edit < RailsAdmin::Config::Actions::Base
        RailsAdmin::Config::Actions.register(self)
 
        register_instance_option :member do

hanaori

/ オリジナル：https://github.com/sferik/rails_admin/blob/master/app/views/rails_admin/main/edit.html.haml
= rails_admin_form_for @object, url: edit_path(@abstract_model, @object.id), as: @abstract_model.param_key, html: { method: "put", multipart: true, class: "form-horizontal denser", data: { title: @page_name } } do |form|
    / ↓ 挿入部分 ↓
    - if @model_name == "Brand" or @model_name == "Item"
        %table.table{:class => "table-striped　table-bordered"}
            %caption 画像の表示順編集
            %tr
                %th ID
                - if @model_name == "Product"
                    %th Name

hanaori

require Rails.root.join('lib', 'display_order_action.rb')
   
RailsAdmin.config do |config|
    config.actions do
        dashboard                     # mandatory
        index                         # mandatory
        new
        export
        bulk_delete
        show