10/30自習
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6
Question10-InstanceAndClass/.classpath
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6
Question10-InstanceAndClass/.classpath
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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21"/>
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<classpathentry kind="src" path="src/main/java"/>
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<classpathentry kind="output" path="build/classes"/>
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</classpath>
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1
Question10-InstanceAndClass/.gitignore
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Question10-InstanceAndClass/.gitignore
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/build/
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23
Question10-InstanceAndClass/.project
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Question10-InstanceAndClass/.project
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>Question10-InstanceAndClass</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.wst.common.project.facet.core.builder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
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<nature>org.eclipse.jdt.core.javanature</nature>
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</natures>
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</projectDescription>
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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
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org.eclipse.jdt.core.compiler.compliance=21
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org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
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org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
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org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
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org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
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org.eclipse.jdt.core.compiler.release=enabled
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org.eclipse.jdt.core.compiler.source=21
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<?xml version="1.0" encoding="UTF-8"?>
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<faceted-project>
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<installed facet="java" version="21"/>
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</faceted-project>
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18
Question10-InstanceAndClass/src/main/java/Question10_1.java
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Question10-InstanceAndClass/src/main/java/Question10_1.java
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public class Question10_1 {
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public static void main(String[] args) {
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// TODO 自動生成されたメソッド・スタブ
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//インスタンス生成
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Question10_User user = new Question10_User();
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//代入
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user.name = "山田太郎";
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user.id = 1000;
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//メソッドの呼び出し
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user.printProfile();
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}
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}
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17
Question10-InstanceAndClass/src/main/java/Question10_2.java
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Question10-InstanceAndClass/src/main/java/Question10_2.java
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public class Question10_2 {
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public static void main(String[] args) {
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// TODO 自動生成されたメソッド・スタブ
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//インスタンス生成
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Question10_User user = new Question10_User();
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//代入
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user.name = "佐藤二郎";
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user.id = 2000;
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//メソッドの呼び出し
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user.printProfile();
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}
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}
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27
Question10-InstanceAndClass/src/main/java/Question10_3.java
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Question10-InstanceAndClass/src/main/java/Question10_3.java
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public class Question10_3 {
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public static void main(String[] args) {
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// TODO 自動生成されたメソッド・スタブ
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//インスタンス生成
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Question10_Student student = new Question10_Student();
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//代入
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student.studentId = 10;
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student.name = "田中次郎";
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student.mail = "test@mail.com";
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student.password = "pass";
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//メソッドなし
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//表示
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System.out.println(student.studentId);
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System.out.println(student.name);
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System.out.println(student.mail);
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System.out.println(student.password);
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}
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}
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17
Question10-InstanceAndClass/src/main/java/Question10_4.java
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Question10-InstanceAndClass/src/main/java/Question10_4.java
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public class Question10_4 {
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public static void main(String[] args) {
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// TODO 自動生成されたメソッド・スタブ
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//インスタンス生成
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Question10_Calculation cal = new Question10_Calculation();
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//代入
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cal.baseNum = 100;
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cal.num = 100;
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//メソッドの呼び出し
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cal.add();
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}
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}
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public class Question10_Calculation {
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//フィールド
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int baseNum;
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int num;
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//メソッド
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public void add() {
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System.out.println(this.baseNum + this.num);
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}
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}
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public class Question10_Student {
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//フィールド
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int studentId;
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String name;
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String mail;
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String password;
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//メソッドなし
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}
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public class Question10_User {
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//フィールド
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int id;
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String name;
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/*メソッド_1
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public void printProfile() {
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System.out.println(this.id );
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System.out.println(this.name);*/
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//メソッド_2
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public void printProfile() {
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System.out.println("ID" + this.id + ":" + this.name );
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}
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}
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