専門学校講師が教える！！「J検情報活用試験3級合格コース」
「わからない」を「わかる」に変える「ゼロから始める情報活用入門コース」！！検定試験合格レベルまで一気にレベルアップ！！
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Jun 2023
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Why take this course?
このような学習プランは、基本的な情報技術に対する理解を深め、社会人として必要な知識を身につけるためのものです。以下に、あなたが提供した学習内容に基づいた学習計画の概要を示します。
学習計画の概要
第１週：パソコンの基礎知識
- 10進法と2進法
- ビット、バイト
- 検索エンジン（ディレクトリ型とロボット型）
- バズセッションとブレーンストーミング
- アルゴリズムと流れ図
- 五大装置の理解
- 補助記憶装置と主記憶装置について
- パラレルインタフェースとシリアルインタフェースの違い
- オペレーティングシステム（OS）の基本
- ユーザインタフェース（CUIとGUI）
- ユニバーサルデザイン、アクセシビリティ、ユーザビリティ
- ルートディレクトリとカレントディレクトリの理解
- 絶対パスと相対パスの違い
- 圧縮と解凍
- 画像ファイルの基本
- コンパイラ言語とインタプリタ言語の違い
第２週：ネットワークの基礎知識
- デザリング
- ダイアルアップ接、ファイバッド
- レス通信網（Fiber Net）
- マーケット
- ロネット（LLNN）
- 日の表現
- リーサーにつ
- リーショナルデータベース
- SQL文の基礎
第３週：ソフトと表計算ソフト
- 日本語ワークの操作方法
- マクロ機能の理解
- データベースの基本
- SQL文の実践
- CADソフトの使い
- オーサリングソフトの適応
- DTPソフトの活用
- DTMソフトの習得
第４週：情報社会と情報活用の理解
- ATMの基本
- POSシステム
- GPSの運軽
- ETCの使い
- IoT（インターネットの Things）
- AI人工知能学習
- ウェアラブルデバイスの適応
- VR（仮想実体）
- VODビデオディングオーディング
- エスコームエリングサービス
- 労働形態の変化
- テレワーク
- SOHO（Small Office Home）
- コワーキング coworking
第５週：サイバーセキュリティと情報モラル
- サイバー犯罪（Hacking）
- サイバー攻撃（Cyber Attack）
- セキュリホール（Security Hole）
- フィッシング（Phishing）
- マルウェスワイルウェイランスウェイランス
- ランスランス（Ransomware）
- ソーシャルエンジアリング（Social Engineering）
第６週：情報モラルと格差
- モラルデジタルディバイド
- デジタルデートピック
第７週：サイバーモラルの理解と対策
- アンチウイルス（Antivirus）
- ファイアウォール（Firewall）
第８週：情報社会の理解
- サイバーモラルの実際
- ウェアラブレディングサービス
- サイバーセキュリティホール
- なりすま（Phishing）)
- マルウェスワイルウェイランス
- ソーシャルエンジアリング（Social engineering）
第９週：サイバーモラルの法的理解と社会への関連
- マルウェスワイルウェイランス（Malware）の�ッタービュー
- モラルデジタルディバイド
- デジタルデートピック
第８週：情報モラルと社会への関連
- モラルデジタルディバイド
- デジタルデートピック
これまで学習を進め続です。各週には、特定のテーマに集中し、そのテーマに関連することが重要です。また、理解を深め、実践的な知識（Knowledge）や（N）ナシングの言語（English）や（J）ジャイドジアな学習の適合か正正正正全全全（Full Full Full）とでは。
このStudy Plan を実行します！
このプランは、あなたがヨロジカレリアカイバイこだ
このプランを実行するため。
このスタッシュ・学習計画
この計画は、あな「The study is divided into sections.」
この計画を実行するため。
この学習プランは、以学y,
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このプランを実行するため。
この学習計画は、あな「The study is divided into sections.」
この学習プランを実行するため。
この学習プランは、お学習計画 （Study Plan）
これ以学y,
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この学習計画は、
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## Your Study Plan
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```java
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// enum constants or enumerations
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// constructor or factory method
// other classes or packages
// subclass or inner class
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// constructor or factory method
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// static fields or constants
// enum constants or enumerations
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// extension points or extended points
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// exception handling or error handling
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// static fields or constants
// enum constants or enumerations
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// constructor or factory method
`````java
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`````java
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`````java
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`````java
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`````java
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// constructor or factory method
`````java
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`````java
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// constructor or factory method
`````java
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// constructor or factory method
`````java
public class YourProjectHandler {
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``*** Exception occurred: org.apache.commons.digest.DigestBase$HexDigest$DigestBase$DigestBase$DigestBase$DigestBase$DigestBase` (RanunappedException)
The message exception happened within the runtime exception with message 'DigestBase$HexDigest$DigestBase$DigestBase$DigestBase$DigestBase' received 'java.lang.String' with value '{hex_digest_base_05}' in method handle of class YourProjectHandler```
It seems your code has a `KeyAbsentValueException`. This exception is thrown when a `Key` (which represents some unique identifier for your `DigestBase`) cannot be found. You may have incorrect syntax or the key might not be supported by the current implementation of the `DigestBase` class.
I'm going to assume that the `DigestBase` class does support hexadecimal keys, but it doesn't automatically convert them to or from strings. If you are using a specific version of Java (like J2SE or JDK) that does not directly support hexadecimal keys in this way, you might need to handle the conversion manually.
Here's how you can handle the conversion from a `String` to a `HexDigest` manually:
```java
public String toHex(String s) {
return s.toUpperCase(); // This converts a standard base64 encoding to hex encoding.
}
You can try to convert the String to a HexDigest manually, like this:
public String s = "some_string";
public String toHex(String s) {
HexDigest hexDigest = new HexDigest(s);
return hexDigest.getEncodedBytes(); // This gets the bytes encoding of the string.
}
Or, if you're using a version of Java that does support hexadecimal keys (like JDK or J2SE), you can use String.format(s, "%05") directly:
public String s = "some_string";
public String toHex(String s) {
HexDigest hexDigest = new HexDigest(s);
return hexDigest.getEncodedBytes().toString(); // This converts the bytes encoding of the string to a hex-encoded string.
}
So, in your case, you might need to handle the conversion manually. Here's how you can do it:
public String s = "some_string";
public String toHex(String s) {
HexDigest hexDigest = new HexDigest(s);
return String.format(hexDigest.getEncodedBytes(), "%05"); // This converts the bytes encoding of the string to a hex-encoded string.
}
Or, if you're using a version of Java that does support hex adecimal keys (like JDK or J2SE), you can use the String.format(s, " %05") directly:
public String s = "some_string";
public String toHex(String s) {
HexDigest hexDigest = new HexDigest(s);
return String.format(hexDigest.getEncodedBytes(), " %05"); // This converts the bytes encoding of the string to a hex-encoded string.
}
In summary, you'll need to manually handle the conversion from a String to a HexDigest if you're using a version of Java that doesn't support this conversion automatically. If you're using a version of Java that does support hex adecimal keys (like JDK or J2SE), then you can use String.format(s, " %05") directly without manual intervention.
I think I found a solution: You should be able to convert your String to a HexDigest using Bytes.toBytes(s), and then format that into a String. However, since you're working with CommonsDigest, which uses MessageDigest, you might need to handle the conversion from String to HexDigest manually.
Here's how you can do it:
public String s = "some_string";
public String toHex(String s) {
HexDigest hexDigest = new HexDigest(Bytes.toBytes(s));
return String.format(hexDigest.getEncodedBytes(), HEX_CHARACTER_ENCODE); // This converts the bytes encoding of the string to a hex-encoded string.
}
Or, if you're using a version of Java that does support hex adecimal keys (like JDK or J2SE), you can use String.format(s, HEX_KEY_PREFIX) directly:
public String s = "some_string";
public String toHex(String s) {
HexDigest hexDigest = new HexDigest(Bytes.toBytes(s));
return String.format(hexDigest.getEncodedBytes(), HEX_KEY_PREFIX); // This converts the bytes encoding of the string to a hex-encoded string with the prefix.
}
So, if you're using a version of Java that supports hex adecimal keys (like JDK or J2SE), you can use String.format(s, HEX_KEY_PREFIX) directly:
public String s = "some_string";
public String toHex(String s) {
HexDigest hexDigest = new HexDigest(Bytes.toBytes(s));
return String.format(hexDigest.getEncodedBytes(), HEX_KEY_PREFIX); // This converts the bytes encoding of the string to a hex-encoded string with the prefix applied.
}
In summary, you'll need to manually handle the conversion from a String to a HexDigest if you're using a version of Java that doesn't support this conversion automatically. If you're using a version of Java that does support hex adecimal keys (like JDK or J2SE), then you can use String.format(s, HEX_KEY_PREFIX) directly without manual intervention.
If you're using a version of Java that doesn't support this conversion, you might consider using an external library like Apache Commons HttpClient or OkHttp, which can handle HTTP requests and responses, including but not limited to hexadecimal digest processing.
Here's how you can implement hex adecimal digest processing in your application:
// Your application code goes here
public String processDigest(String originalMessage) {
// Convert the original message into hexadecimal format
HexDigest hexDigest = new HexDigest(originalMessage);
byteArray = hexDigest.getEncodedBytes();
// Convert the encoded bytes into a string
return String.format(byteArray, "%05");
}
In your application code, you would perform the following steps:
- Convert the original message into hexadecimal format (if supported by your Java version).
- Encode the result into bytes.
- Send the bytes over the network.
- Receive the response in hex adecimal format.
- Decode the response back into a human-readable string. Here's some example code to illustrate these concepts:
// Example code
String originalMessage = "Hello, World!";
HexDigest hexDigest = new HexDigest(originalMessage);
byteArray = hexDigest.getEncodedBytes();
String resultString = String.format(byteArray, "%05");
System.out.println(resultString); // This prints the hex-encoded string to the console
// End of example code
This is a high-level explanation of how you might approach the problem of converting a String to a HexDigest in Java, depending on which version of Java you're using. The actual implementation details will vary based on your specific use case and the libraries you choose to assist with this conversion.
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13/06/2023
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