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java-question/練習問題をすすめる手順.html
2026-09-09 08:34:32 +09:00

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<div id='write' class=''><h2><a name="java練習問題をすすめる手順" class="md-header-anchor"></a><span>Java練習問題をすすめる手順</span></h2><h4><a name="前提条件" class="md-header-anchor"></a><span>前提条件</span></h4><ul><li><span>JDKインストール済み</span></li><li><span>Gitアカウント作成済み(講師から事前に指示あり)</span></li><li><span>SourceTreeインストール済み</span></li></ul><p>&nbsp;</p><h4><a name="練習問題取得gitからクローン)" class="md-header-anchor"></a><span>練習問題取得(Gitからクローン)</span></h4><ol start='' ><li><p><span>ブラウザでGitの練習問題リポジトリを開き、リポジトリURLをコピーする(リポジトリ名は講師の指示に従ってください。)</span></p></li><li><p><span>SourceTreeで必要な情報を入力して「クローン」を実行</span></p><ul><li><p><span>リモートリポジトリのURL(1.で取得したもの)</span></p><p><span>入力後別カーソルに移動したときに「これはGitリポジトリです」と表示されればOK</span></p><p><span>認証を求められる場合は、Gitアカウントのユーザーとパスワードを入力する</span></p></li><li><p><span>クローンしたファイルを保存するフォルダパス(初期値のままでもOK)(例)C:\Users\yamada\Documents\hogehoge</span></p></li><li><p><span>クローンしたリポジトリの名前(初期値のままでOK)(例)hogehoge</span></p></li></ul></li></ol><p>&nbsp;</p><h4><a name="配布物の説明" class="md-header-anchor"></a><span>配布物の説明</span></h4><ul><li><p><span>src</span></p><p><span>単元ごと、カテゴリ毎にQuestionフォルダに分かれています</span></p></li><li><p><span>実行例</span></p><p><span>TODOの内容を正しく実装したプログラム(classファイル)です。</span></p><p><span>対象プログラムを実行すると、正しく動作したときの実行結果を確認できます。</span></p></li></ul><p>&nbsp;</p><h4><a name="コーディング・コンパイル・プログラム実行" class="md-header-anchor"></a><span>コーディング・コンパイル・プログラム実行</span></h4><ul><li><p><span>コマンドプロンプトを利用する場合 </span></p><ol start='' ><li><p><span>文字コード変更</span></p><p><span>クローンしたファイルを保存したフォルダパスを開き、修正対象のJavaファイルをテキストエディタで開いて、文字コードを「SJIS」に変更し保存する(変更前は「UTF-8」)</span></p></li><li><p><span>コーディング</span></p><p><span>修正対象ファイルをテキストエディタでコーディングする</span></p><ul><li><span>「//TODO」で始まるコメントに記載されている内容を実装します</span></li></ul></li><li><p><span>コンパイル</span></p><ol start='' ><li><p><span>ディレクトリ移動</span></p><p><span>コマンドプロンプトを開き、cdコマンドを使って、修正したJavaファイルのパスに移動する</span></p><p><span> </span><strong><span>cd 絶対パス(または相対パス)</span></strong></p><p><span>(例)</span></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang=""><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang=""><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 7.59375px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">c:\work&gt;cd C:\Users\yamada\Documents\JavaTraining\Question01-StartProgram\src </span></pre></div></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 23px;"></div><div class="CodeMirror-gutters" style="display: none; height: 23px;"></div></div></div></pre><p><span> ↓以下のようになればOK</span></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang=""><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang=""><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 7.59375px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">C:\Users\yamada\Documents\JavaTraining\Question01-StartProgram\src&gt;</span></pre></div></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 23px;"></div><div class="CodeMirror-gutters" style="display: none; height: 23px;"></div></div></div></pre><p>&nbsp;</p></li><li><p><span>コンパイル実行</span></p><p><span>Javaファイルの存在するディレクトリに移動後、コンパイルを実行する</span></p><p><span>実行後、同フォルダに.classファイルが作成されていればコンパイル成功です。</span></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang=""><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang=""><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 7.59375px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">C:\Users\yamada\Documents\JavaTraining\Question01-StartProgram\src&gt;javac PTra01_01.java</span></pre></div></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 46px;"></div><div class="CodeMirror-gutters" style="display: none; height: 46px;"></div></div></div></pre><p><span> </span></p></li></ol></li><li><p><span>実行</span></p><p><span>コンパイルしたときと同じディレクトリで、プログラムを実行する</span></p><p><span>(例)</span></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang=""><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang=""><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 7.59375px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">C:\Users\yamada\Documents\JavaTraining\Question01-StartProgram\src&gt;java PTra01_01</span></pre></div></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 23px;"></div><div class="CodeMirror-gutters" style="display: none; height: 23px;"></div></div></div></pre><p><span>実行例を確認する場合も同様に、実行例のclassファイルが入っているディレクトリに移動の上、プログラムを実行する</span></p><p><span>(例)</span></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang=""><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang=""><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 7.59375px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">C:\Users\yamada\Documents\JavaSETraning\Question01-StartProgram\実行例&gt;java PTra01_01</span></pre></div></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 46px;"></div><div class="CodeMirror-gutters" style="display: none; height: 46px;"></div></div></div></pre><p>&nbsp;</p></li></ol></li></ul><p>&nbsp;</p><ul><li><p><span>Eclipseを利用する場合 </span></p><ol start='' ><li><p><span>実行例フォルダを退避(必要に応じて)</span></p></li><li><p><span>プロジェクトのインポート(Question単位)</span></p><ol start='' ><li><p><span>Eclipseを開き、「ファイル」メニューの中の「インポート」をクリックします。</span></p></li><li><p><span>「一般」の中の「フォルダまたはアーカイブからプロジェクトへ」をクリックし「次へ」ボタンをクリックします。</span></p></li><li><p><span>インポートするフォルダを選択するウィンドウが表示されます。「ディレクトリ」ボタンをクリックして、インポートするディレクトリを指定して「フォルダーの選択」ボタンをクリックします。インポート・ソースに正しいパスが設定されていることを確認の上、「完了」ボタンをクリックします。</span></p><p><span>※srcフォルダの1つ上の階層の「QuestionXX-~」フォルダを選択してください。それより上位のフォルダをプロジェクトとしてインポートすると設定が複雑になるためお勧めしません</span></p><p><span>(例)</span></p><pre spellcheck="false" class="md-fences md-end-block ty-contain-cm modeLoaded" lang=""><div class="CodeMirror cm-s-inner CodeMirror-wrap" lang=""><div style="overflow: hidden; position: relative; width: 3px; height: 0px; top: 0px; left: 7.59375px;"><textarea autocorrect="off" autocapitalize="off" spellcheck="false" tabindex="0" style="position: absolute; bottom: -1em; padding: 0px; width: 1000px; height: 1em; outline: none;"></textarea></div><div class="CodeMirror-scrollbar-filler" cm-not-content="true"></div><div class="CodeMirror-gutter-filler" cm-not-content="true"></div><div class="CodeMirror-scroll" tabindex="-1"><div class="CodeMirror-sizer" style="margin-left: 0px; margin-bottom: 0px; border-right-width: 0px; padding-right: 0px; padding-bottom: 0px;"><div style="position: relative; top: 0px;"><div class="CodeMirror-lines" role="presentation"><div role="presentation" style="position: relative; outline: none;"><div class="CodeMirror-measure"><pre><span>xxxxxxxxxx</span></pre></div><div class="CodeMirror-measure"></div><div style="position: relative; z-index: 1;"></div><div class="CodeMirror-code" role="presentation"><div class="CodeMirror-activeline" style="position: relative;"><div class="CodeMirror-activeline-background CodeMirror-linebackground"></div><div class="CodeMirror-gutter-background CodeMirror-activeline-gutter" style="left: 0px; width: 0px;"></div><pre class=" CodeMirror-line " role="presentation"><span role="presentation" style="padding-right: 0.1px;">インポート・ソース:C:\Users\yamada\Documents\JavaTraning\Question02-Expressions</span></pre></div></div></div></div></div></div><div style="position: absolute; height: 0px; width: 1px; border-bottom: 0px solid transparent; top: 23px;"></div><div class="CodeMirror-gutters" style="display: none; height: 23px;"></div></div></div></pre><p>&nbsp;</p><p>&nbsp;</p></li></ol></li><li><p><span>コーディング</span></p><p><span>コンソール同様に「//TODO」で始まるコメントにしたがってコーディングします。</span></p><p><span>文字コードはUTF-8のままでOK</span></p></li><li><p><span>コンパイル</span></p><p><span>保存するだけでコンパイルされます。設定によっては手動にもできますが、初期設定では保存と同時にコンパイルされます。</span></p></li><li><p><span>実行</span></p><p><span>パッケージエクスプローラで実行したいJavaファイルを右クリック</span></p><p><span>[</span><em><span>実行</span></em><span>(R)] &gt; [Java</span><em><span>アプリケーション</span></em><span>] を選択</span></p><p><span>※実行例の確認は、コマンドプロンプトから行ってください。</span></p></li></ol><p>&nbsp;</p><p>&nbsp;</p><p><span>以上</span></p><p>&nbsp;</p></li></ul><p>&nbsp;</p></div>
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