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step_1's Introduction

Javaの世界へようこそ

このレッスンでは、Javaの基本的なコードの書き方、出力について学んでいきます。

文字を出力してみよう

System.out.println を使って文字をコンソールにだしてみよう。

コーディング
  1. Greeting.java ファイルを作成
  2. Greeting.java に以下の内容を書き写す
class Greeting {
  public static void main(String[] args) {
    // あいさつ
    System.out.println("はろー");
  }
}
実行
  1. コマンドプロンプトを立ち上げる
  2. 以下のコマンドを実行
$ javac Greeting.java
$ java Greeting 
$ はろー

TODO

  • Hello world! を出力してみよう
  • 出力を確認できたら commit & push をしてみよう
  • 実行結果が緑色になることを確認しよう

step_1's People

Contributors

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