10/30自習

This commit is contained in:
2026-10-30 17:49:41 +09:00
parent d9529e2971
commit 0053058bfa
108 changed files with 1499 additions and 0 deletions

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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21"/>
<classpathentry kind="src" path="src/main/java"/>
<classpathentry kind="output" path="build/classes"/>
</classpath>

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/build/

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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>Question10-InstanceAndClass</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.wst.common.project.facet.core.builder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
</projectDescription>

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eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
org.eclipse.jdt.core.compiler.compliance=21
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
org.eclipse.jdt.core.compiler.release=enabled
org.eclipse.jdt.core.compiler.source=21

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<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
<installed facet="java" version="21"/>
</faceted-project>

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public class Question10_1 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
//インスタンス生成
Question10_User user = new Question10_User();
//代入
user.name = "山田太郎";
user.id = 1000;
//メソッドの呼び出し
user.printProfile();
}
}

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public class Question10_2 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
//インスタンス生成
Question10_User user = new Question10_User();
//代入
user.name = "佐藤二郎";
user.id = 2000;
//メソッドの呼び出し
user.printProfile();
}
}

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public class Question10_3 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
//インスタンス生成
Question10_Student student = new Question10_Student();
//代入
student.studentId = 10;
student.name = "田中次郎";
student.mail = "test@mail.com";
student.password = "pass";
//メソッドなし
//表示
System.out.println(student.studentId);
System.out.println(student.name);
System.out.println(student.mail);
System.out.println(student.password);
}
}

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public class Question10_4 {
public static void main(String[] args) {
// TODO 自動生成されたメソッド・スタブ
//インスタンス生成
Question10_Calculation cal = new Question10_Calculation();
//代入
cal.baseNum = 100;
cal.num = 100;
//メソッドの呼び出し
cal.add();
}
}

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public class Question10_Calculation {
//フィールド
int baseNum;
int num;
//メソッド
public void add() {
System.out.println(this.baseNum + this.num);
}
}

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public class Question10_Student {
//フィールド
int studentId;
String name;
String mail;
String password;
//メソッドなし
}

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public class Question10_User {
//フィールド
int id;
String name;
/*メソッド_1
public void printProfile() {
System.out.println(this.id );
System.out.println(this.name);*/
//メソッド_2
public void printProfile() {
System.out.println("ID" + this.id + ":" + this.name );
}
}