Merge branch 'master' of gitea.it:gicorada/java-scuola

NetBeans Projects/Deposito/build.xml

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- You may freely edit this file. See commented blocks below for -->
+<!-- some examples of how to customize the build. -->
+<!-- (If you delete it and reopen the project it will be recreated.) -->
+<!-- By default, only the Clean and Build commands use this build script. -->
+<!-- Commands such as Run, Debug, and Test only use this build script if -->
+<!-- the Compile on Save feature is turned off for the project. -->
+<!-- You can turn off the Compile on Save (or Deploy on Save) setting -->
+<!-- in the project's Project Properties dialog box.-->
+<project name="Deposito" default="default" basedir=".">
+    <description>Builds, tests, and runs the project Deposito.</description>
+    <import file="nbproject/build-impl.xml"/>
+    <!--
+
+    There exist several targets which are by default empty and which can be 
+    used for execution of your tasks. These targets are usually executed 
+    before and after some main targets. They are: 
+
+      -pre-init:                 called before initialization of project properties
+      -post-init:                called after initialization of project properties
+      -pre-compile:              called before javac compilation
+      -post-compile:             called after javac compilation
+      -pre-compile-single:       called before javac compilation of single file
+      -post-compile-single:      called after javac compilation of single file
+      -pre-compile-test:         called before javac compilation of JUnit tests
+      -post-compile-test:        called after javac compilation of JUnit tests
+      -pre-compile-test-single:  called before javac compilation of single JUnit test
+      -post-compile-test-single: called after javac compilation of single JUunit test
+      -pre-jar:                  called before JAR building
+      -post-jar:                 called after JAR building
+      -post-clean:               called after cleaning build products
+
+    (Targets beginning with '-' are not intended to be called on their own.)
+
+    Example of inserting an obfuscator after compilation could look like this:
+
+        <target name="-post-compile">
+            <obfuscate>
+                <fileset dir="${build.classes.dir}"/>
+            </obfuscate>
+        </target>
+
+    For list of available properties check the imported 
+    nbproject/build-impl.xml file. 
+
+
+    Another way to customize the build is by overriding existing main targets.
+    The targets of interest are: 
+
+      -init-macrodef-javac:     defines macro for javac compilation
+      -init-macrodef-junit:     defines macro for junit execution
+      -init-macrodef-debug:     defines macro for class debugging
+      -init-macrodef-java:      defines macro for class execution
+      -do-jar:                  JAR building
+      run:                      execution of project 
+      -javadoc-build:           Javadoc generation
+      test-report:              JUnit report generation
+
+    An example of overriding the target for project execution could look like this:
+
+        <target name="run" depends="Deposito-impl.jar">
+            <exec dir="bin" executable="launcher.exe">
+                <arg file="${dist.jar}"/>
+            </exec>
+        </target>
+
+    Notice that the overridden target depends on the jar target and not only on 
+    the compile target as the regular run target does. Again, for a list of available 
+    properties which you can use, check the target you are overriding in the
+    nbproject/build-impl.xml file. 
+
+    -->
+</project>

NetBeans Projects/Deposito/build/classes/deposito/in.txt

@@ -0,0 +1,4 @@
+L:acqua:2
+L:the:3
+B:acqua:50
+B:the:60

NetBeans Projects/Deposito/manifest.mf

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+X-COMMENT: Main-Class will be added automatically by build
+

NetBeans Projects/Deposito/nbproject/genfiles.properties

@@ -0,0 +1,8 @@
+build.xml.data.CRC32=f2a82b7a
+build.xml.script.CRC32=5ca88341
+build.xml.stylesheet.CRC32=f85dc8f2@1.106.0.48
+# This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
+# Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
+nbproject/build-impl.xml.data.CRC32=f2a82b7a
+nbproject/build-impl.xml.script.CRC32=e6ee764a
+nbproject/build-impl.xml.stylesheet.CRC32=12e0a6c2@1.106.0.48

NetBeans Projects/Deposito/nbproject/private/private.properties

@@ -0,0 +1,9 @@
+application.args=in.txt
+compile.on.save=true
+do.depend=false
+do.jar=true
+do.jlink=false
+javac.debug=true
+javadoc.preview=true
+jlink.strip=false
+user.properties.file=/home/gicorada/.netbeans/17/build.properties

NetBeans Projects/Deposito/nbproject/private/private.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project-private xmlns="http://www.netbeans.org/ns/project-private/1">
+    <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
+    <open-files xmlns="http://www.netbeans.org/ns/projectui-open-files/2">
+        <group/>
+    </open-files>
+</project-private>

NetBeans Projects/Deposito/nbproject/project.properties

@@ -0,0 +1,98 @@
+annotation.processing.enabled=true
+annotation.processing.enabled.in.editor=false
+annotation.processing.processors.list=
+annotation.processing.run.all.processors=true
+annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
+application.title=Deposito
+application.vendor=gicorada
+build.classes.dir=${build.dir}/classes
+build.classes.excludes=**/*.java,**/*.form
+# This directory is removed when the project is cleaned:
+build.dir=build
+build.generated.dir=${build.dir}/generated
+build.generated.sources.dir=${build.dir}/generated-sources
+# Only compile against the classpath explicitly listed here:
+build.sysclasspath=ignore
+build.test.classes.dir=${build.dir}/test/classes
+build.test.results.dir=${build.dir}/test/results
+# Uncomment to specify the preferred debugger connection transport:
+#debug.transport=dt_socket
+debug.classpath=\
+    ${run.classpath}
+debug.modulepath=\
+    ${run.modulepath}
+debug.test.classpath=\
+    ${run.test.classpath}
+debug.test.modulepath=\
+    ${run.test.modulepath}
+# Files in build.classes.dir which should be excluded from distribution jar
+dist.archive.excludes=
+# This directory is removed when the project is cleaned:
+dist.dir=dist
+dist.jar=${dist.dir}/Deposito.jar
+dist.javadoc.dir=${dist.dir}/javadoc
+dist.jlink.dir=${dist.dir}/jlink
+dist.jlink.output=${dist.jlink.dir}/Deposito
+endorsed.classpath=
+excludes=
+includes=**
+jar.compress=false
+javac.classpath=
+# Space-separated list of extra javac options
+javac.compilerargs=
+javac.deprecation=false
+javac.external.vm=true
+javac.modulepath=
+javac.processormodulepath=
+javac.processorpath=\
+    ${javac.classpath}
+javac.source=17
+javac.target=17
+javac.test.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+javac.test.modulepath=\
+    ${javac.modulepath}
+javac.test.processorpath=\
+    ${javac.test.classpath}
+javadoc.additionalparam=
+javadoc.author=false
+javadoc.encoding=${source.encoding}
+javadoc.html5=false
+javadoc.noindex=false
+javadoc.nonavbar=false
+javadoc.notree=false
+javadoc.private=false
+javadoc.splitindex=true
+javadoc.use=true
+javadoc.version=false
+javadoc.windowtitle=
+# The jlink additional root modules to resolve
+jlink.additionalmodules=
+# The jlink additional command line parameters
+jlink.additionalparam=
+jlink.launcher=true
+jlink.launcher.name=Deposito
+main.class=deposito.Tester
+manifest.file=manifest.mf
+meta.inf.dir=${src.dir}/META-INF
+mkdist.disabled=false
+platform.active=Zulu_17.0.6_10
+project.license=apache20
+run.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+# Space-separated list of JVM arguments used when running the project.
+# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
+# To set system properties for unit tests define test-sys-prop.name=value:
+run.jvmargs=
+run.modulepath=\
+    ${javac.modulepath}
+run.test.classpath=\
+    ${javac.test.classpath}:\
+    ${build.test.classes.dir}
+run.test.modulepath=\
+    ${javac.test.modulepath}
+source.encoding=UTF-8
+src.dir=src
+test.src.dir=test

NetBeans Projects/Deposito/nbproject/project.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://www.netbeans.org/ns/project/1">
+    <type>org.netbeans.modules.java.j2seproject</type>
+    <configuration>
+        <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
+            <name>Deposito</name>
+            <explicit-platform explicit-source-supported="true"/>
+            <source-roots>
+                <root id="src.dir"/>
+            </source-roots>
+            <test-roots>
+                <root id="test.src.dir"/>
+            </test-roots>
+        </data>
+    </configuration>
+</project>

NetBeans Projects/Deposito/src/deposito/B.java

@@ -0,0 +1,35 @@
+package deposito;
+
+/**
+ * Classe che simula un bidone contenente liquido
+ * @author radaelli11353
+ */
+public class B extends C {
+    private double quantita;
+    private String nome;
+
+    public B(double quantita, String nome, String id) {
+        super(id);
+        this.quantita = quantita;
+        this.nome = nome;
+    }
+    
+    @Override
+    public String getNome() {
+        return nome;
+    }
+    
+    @Override
+    public int compareTo(C o) {
+        if(o.toString().contains("L{quantita=")) return 1;
+        B b = (B) o;
+        return Double.compare(quantita, b.quantita);
+    }
+
+    @Override
+    public String toString() {
+        return "B{" + "quantita=" + quantita + ", nome=" + nome + '}';
+    }
+    
+    
+}

NetBeans Projects/Deposito/src/deposito/C.java

@@ -0,0 +1,23 @@
+package deposito;
+
+/**
+ * Classe che simula un contenitore generico
+ * @author radaelli11353
+ */
+public abstract class C implements Comparable<C> {
+    String id;
+
+    public C(String id) {
+        this.id = id;
+    }
+    
+    public abstract String getNome();
+
+    @Override
+    public abstract int compareTo(C o);
+
+    @Override
+    public String toString() {
+        return "C{" + "id=" + id + '}';
+    }
+}

NetBeans Projects/Deposito/src/deposito/L.java

@@ -0,0 +1,35 @@
+package deposito;
+
+/**
+ * Classe che simula una lattina contenente liquido
+ * @author radaelli11335
+ */
+public class L extends C {
+    private double quantita;
+    private String nome;
+
+    public L(double quantita, String nome, String id) {
+        super(id);
+        this.quantita = quantita;
+        this.nome = nome;
+    }
+
+    @Override
+    public String getNome() {
+        return nome;
+    }
+
+    @Override
+    public int compareTo(C o) {
+        if(o.toString().contains("B{quantita=")) return -1;
+        L l = (L) o;
+        return Double.compare(quantita, l.quantita);
+    }
+
+    @Override
+    public String toString() {
+        return "L{" + "quantita=" + quantita + ", nome=" + nome + '}';
+    }
+    
+    
+}

NetBeans Projects/Deposito/src/deposito/Tester.java

@@ -0,0 +1,34 @@
+package deposito;
+
+import java.util.Arrays;
+import java.util.Scanner;
+
+/**
+ * Classe di test
+ * @author radaelli11353
+ */
+public class Tester {
+    public static void main(String[] args) {
+        Scanner file = new Scanner(System.in);
+        
+        C[] T = new C[20];
+        int counter = 0;
+        
+        while(file.hasNextLine()) {
+            String[] elements = file.nextLine().split(":");
+            
+            if(counter == T.length) T = Arrays.copyOf(T, T.length * 2);
+            char type = elements[0].toLowerCase().charAt(0);
+            String nome = elements[1];
+            double quantita = Double.parseDouble(elements[2]);
+            
+            if(type == 'l') T[counter++] = new L(quantita, nome, Integer.toString(counter));
+            else if(type == 'b') T[counter++] = new B(quantita, nome, Integer.toString(counter));
+        }
+        
+        T = Arrays.copyOf(T, counter);
+                
+        System.out.println(Arrays.toString(Utils.filtra(T, "acqua")));
+    }
+    
+}

NetBeans Projects/Deposito/src/deposito/Utils.java

@@ -0,0 +1,22 @@
+package deposito;
+
+/**
+ * Classe con utilità
+ * @author radaelli11353
+ */
+public class Utils {
+    public static C[] filtra(C[] T, String liq) {
+        int counter = 0;
+        for(C el : T) {
+            if(!el.getNome().equals(liq)) counter++;
+        }
+        C[] filtered = new C[counter];
+        counter = 0;
+        
+        for(C el : T) {
+            if(!el.getNome().equals(liq)) filtered[counter++] = el;
+        }
+        return filtered;
+    }
+    
+}

NetBeans Projects/Deposito/src/deposito/in.txt

@@ -0,0 +1,4 @@
+L:acqua:2
+L:the:3
+B:acqua:50
+B:the:60

NetBeans Projects/pile/nbproject/private/private.xml

@@ -2,9 +2,6 @@
 <project-private xmlns="http://www.netbeans.org/ns/project-private/1">
     <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
     <open-files xmlns="http://www.netbeans.org/ns/projectui-open-files/2">
-        <group>
-            <file>file:/media/gicorada/Scuola/Anni%20Severi/22-23/Informatica/java-scuola/NetBeans%20Projects/pile/src/pile/Pile.java</file>
-            <file>file:/media/gicorada/Scuola/Anni%20Severi/22-23/Informatica/java-scuola/NetBeans%20Projects/pile/src/pile/Pair.java</file>
-        </group>
+        <group/>
     </open-files>
 </project-private>

NetBeans Projects/shape/build.xml

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- You may freely edit this file. See commented blocks below for -->
+<!-- some examples of how to customize the build. -->
+<!-- (If you delete it and reopen the project it will be recreated.) -->
+<!-- By default, only the Clean and Build commands use this build script. -->
+<!-- Commands such as Run, Debug, and Test only use this build script if -->
+<!-- the Compile on Save feature is turned off for the project. -->
+<!-- You can turn off the Compile on Save (or Deploy on Save) setting -->
+<!-- in the project's Project Properties dialog box.-->
+<project name="shape" default="default" basedir=".">
+    <description>Builds, tests, and runs the project shape.</description>
+    <import file="nbproject/build-impl.xml"/>
+    <!--
+
+    There exist several targets which are by default empty and which can be 
+    used for execution of your tasks. These targets are usually executed 
+    before and after some main targets. They are: 
+
+      -pre-init:                 called before initialization of project properties
+      -post-init:                called after initialization of project properties
+      -pre-compile:              called before javac compilation
+      -post-compile:             called after javac compilation
+      -pre-compile-single:       called before javac compilation of single file
+      -post-compile-single:      called after javac compilation of single file
+      -pre-compile-test:         called before javac compilation of JUnit tests
+      -post-compile-test:        called after javac compilation of JUnit tests
+      -pre-compile-test-single:  called before javac compilation of single JUnit test
+      -post-compile-test-single: called after javac compilation of single JUunit test
+      -pre-jar:                  called before JAR building
+      -post-jar:                 called after JAR building
+      -post-clean:               called after cleaning build products
+
+    (Targets beginning with '-' are not intended to be called on their own.)
+
+    Example of inserting an obfuscator after compilation could look like this:
+
+        <target name="-post-compile">
+            <obfuscate>
+                <fileset dir="${build.classes.dir}"/>
+            </obfuscate>
+        </target>
+
+    For list of available properties check the imported 
+    nbproject/build-impl.xml file. 
+
+
+    Another way to customize the build is by overriding existing main targets.
+    The targets of interest are: 
+
+      -init-macrodef-javac:     defines macro for javac compilation
+      -init-macrodef-junit:     defines macro for junit execution
+      -init-macrodef-debug:     defines macro for class debugging
+      -init-macrodef-java:      defines macro for class execution
+      -do-jar:                  JAR building
+      run:                      execution of project 
+      -javadoc-build:           Javadoc generation
+      test-report:              JUnit report generation
+
+    An example of overriding the target for project execution could look like this:
+
+        <target name="run" depends="shape-impl.jar">
+            <exec dir="bin" executable="launcher.exe">
+                <arg file="${dist.jar}"/>
+            </exec>
+        </target>
+
+    Notice that the overridden target depends on the jar target and not only on 
+    the compile target as the regular run target does. Again, for a list of available 
+    properties which you can use, check the target you are overriding in the
+    nbproject/build-impl.xml file. 
+
+    -->
+</project>

NetBeans Projects/shape/manifest.mf

@@ -0,0 +1,3 @@
+Manifest-Version: 1.0
+X-COMMENT: Main-Class will be added automatically by build
+

NetBeans Projects/shape/nbproject/genfiles.properties

@@ -0,0 +1,8 @@
+build.xml.data.CRC32=184eed3a
+build.xml.script.CRC32=04b06f70
+build.xml.stylesheet.CRC32=f85dc8f2@1.106.0.48
+# This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
+# Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
+nbproject/build-impl.xml.data.CRC32=184eed3a
+nbproject/build-impl.xml.script.CRC32=677ad60c
+nbproject/build-impl.xml.stylesheet.CRC32=12e0a6c2@1.106.0.48

NetBeans Projects/shape/nbproject/private/private.properties

@@ -0,0 +1,2 @@
+compile.on.save=true
+user.properties.file=/home/gicorada/.netbeans/17/build.properties

NetBeans Projects/shape/nbproject/private/private.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project-private xmlns="http://www.netbeans.org/ns/project-private/1">
+    <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
+    <open-files xmlns="http://www.netbeans.org/ns/projectui-open-files/2">
+        <group>
+            <file>file:/home/gicorada/NetBeansProjects/shape/src/shape/Shape.java</file>
+            <file>file:/home/gicorada/NetBeansProjects/shape/src/shape/Circle.java</file>
+            <file>file:/home/gicorada/NetBeansProjects/shape/src/shape/Rectangle.java</file>
+            <file>file:/home/gicorada/NetBeansProjects/shape/src/shape/Tester.java</file>
+        </group>
+    </open-files>
+</project-private>

NetBeans Projects/shape/nbproject/project.properties

@@ -0,0 +1,95 @@
+annotation.processing.enabled=true
+annotation.processing.enabled.in.editor=false
+annotation.processing.processor.options=
+annotation.processing.processors.list=
+annotation.processing.run.all.processors=true
+annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
+build.classes.dir=${build.dir}/classes
+build.classes.excludes=**/*.java,**/*.form
+# This directory is removed when the project is cleaned:
+build.dir=build
+build.generated.dir=${build.dir}/generated
+build.generated.sources.dir=${build.dir}/generated-sources
+# Only compile against the classpath explicitly listed here:
+build.sysclasspath=ignore
+build.test.classes.dir=${build.dir}/test/classes
+build.test.results.dir=${build.dir}/test/results
+# Uncomment to specify the preferred debugger connection transport:
+#debug.transport=dt_socket
+debug.classpath=\
+    ${run.classpath}
+debug.modulepath=\
+    ${run.modulepath}
+debug.test.classpath=\
+    ${run.test.classpath}
+debug.test.modulepath=\
+    ${run.test.modulepath}
+# Files in build.classes.dir which should be excluded from distribution jar
+dist.archive.excludes=
+# This directory is removed when the project is cleaned:
+dist.dir=dist
+dist.jar=${dist.dir}/shape.jar
+dist.javadoc.dir=${dist.dir}/javadoc
+dist.jlink.dir=${dist.dir}/jlink
+dist.jlink.output=${dist.jlink.dir}/shape
+excludes=
+includes=**
+jar.compress=false
+javac.classpath=
+# Space-separated list of extra javac options
+javac.compilerargs=
+javac.deprecation=false
+javac.external.vm=true
+javac.modulepath=
+javac.processormodulepath=
+javac.processorpath=\
+    ${javac.classpath}
+javac.source=17
+javac.target=17
+javac.test.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+javac.test.modulepath=\
+    ${javac.modulepath}
+javac.test.processorpath=\
+    ${javac.test.classpath}
+javadoc.additionalparam=
+javadoc.author=false
+javadoc.encoding=${source.encoding}
+javadoc.html5=false
+javadoc.noindex=false
+javadoc.nonavbar=false
+javadoc.notree=false
+javadoc.private=false
+javadoc.splitindex=true
+javadoc.use=true
+javadoc.version=false
+javadoc.windowtitle=
+# The jlink additional root modules to resolve
+jlink.additionalmodules=
+# The jlink additional command line parameters
+jlink.additionalparam=
+jlink.launcher=true
+jlink.launcher.name=shape
+main.class=shape.Tester
+manifest.file=manifest.mf
+meta.inf.dir=${src.dir}/META-INF
+mkdist.disabled=false
+platform.active=Zulu_17.0.6_10
+run.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+# Space-separated list of JVM arguments used when running the project.
+# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
+# To set system properties for unit tests define test-sys-prop.name=value:
+run.jvmargs=
+run.modulepath=\
+    ${javac.modulepath}
+run.test.classpath=\
+    ${javac.test.classpath}:\
+    ${build.test.classes.dir}
+run.test.modulepath=\
+    ${javac.test.modulepath}
+source.encoding=UTF-8
+src.dir=src
+test.src.dir=test

NetBeans Projects/shape/nbproject/project.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://www.netbeans.org/ns/project/1">
+    <type>org.netbeans.modules.java.j2seproject</type>
+    <configuration>
+        <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
+            <name>shape</name>
+            <explicit-platform explicit-source-supported="true"/>
+            <source-roots>
+                <root id="src.dir"/>
+            </source-roots>
+            <test-roots>
+                <root id="test.src.dir"/>
+            </test-roots>
+        </data>
+    </configuration>
+</project>

NetBeans Projects/shape/src/shape/Circle.java

@@ -0,0 +1,60 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package shape;
+
+/**
+ *
+ * @author gicorada
+ */
+public class Circle extends Shape {
+    private int xc, yc, r;
+
+    public Circle(int xc, int yc, int r) {
+        this.xc = xc;
+        this.yc = yc;
+        this.r = r;
+    }
+    
+    public void setRadius(int r) {
+        this.r = r;
+    }
+
+    @Override
+    public int width() {
+        return r*2;
+    }
+
+    @Override
+    public int height() {
+        return r*2;
+    }
+
+    @Override
+    public int posX() {
+        return xc - r;
+    }
+
+    @Override
+    public int posY() {
+        return yc - r;
+    }
+    
+    @Override
+    public int hashCode() {
+        int hash = 3;
+        hash = 59 * hash + this.xc;
+        hash = 59 * hash + this.yc;
+        hash = 59 * hash + this.r;
+        return hash;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null) return false;
+        if (getClass() != o.getClass()) return false;
+        Circle c = (Circle) o;
+        return (xc == c.xc && yc == c.yc) && r == c.r;
+    }
+}

NetBeans Projects/shape/src/shape/Rectangle.java

@@ -0,0 +1,60 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package shape;
+
+/**
+ *
+ * @author gicorada
+ */
+public class Rectangle extends Shape {
+    private int x, y, w, h;
+
+    public Rectangle(int x, int y, int w, int h) {
+        this.x = x;
+        this.y = y;
+        this.w = w;
+        this.h = h;
+    }
+
+    @Override
+    public int width() {
+        return w;
+    }
+
+    @Override
+    public int height() {
+        return h;
+    }
+
+    @Override
+    public int posX() {
+        return x;
+    }
+
+    @Override
+    public int posY() {
+        return y;
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = 5;
+        hash = 37 * hash + this.x;
+        hash = 37 * hash + this.y;
+        hash = 37 * hash + this.w;
+        hash = 37 * hash + this.h;
+        return hash;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o == null) return false;
+        if (getClass() != o.getClass()) return false;
+        Rectangle r = (Rectangle) o;
+        return w == r.w && h == r.h && x == r.x && y == r.y;
+    }
+    
+    
+}

NetBeans Projects/shape/src/shape/Shape.java

@@ -0,0 +1,23 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package shape;
+
+/**
+ *
+ * @author gicorada
+ */
+public abstract class Shape implements Comparable<Shape> {
+    private int w, h, x, y;
+    
+    public abstract int width();
+    public abstract int height();
+    public abstract int posX();
+    public abstract int posY();
+    
+    @Override
+    public int compareTo(Shape o) {
+        return width()*height() - o.width()*o.height();
+    }
+}

NetBeans Projects/shape/src/shape/Tester.java

@@ -0,0 +1,25 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+package shape;
+
+/**
+ *
+ * @author gicorada
+ */
+public class Tester {
+    public static void main(String[] args) {
+        Shape c1 = new Circle(2, 3, 1);
+        Shape c2 = new Circle(2, 3, 1);
+        
+        System.out.println(c1.posX() + ", " +c1.posY());
+        System.out.println(c1.width() + ", " +c1.height());
+        System.out.println(c1.equals(c2));
+        
+        ((Circle) c2).setRadius(2);
+        System.out.println(c2.posX() + ", " + c2.posY());
+    }
+    
+    
+}