Task2

Robots.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module version="4">
+  <component name="AdditionalModuleElements">
+    <content url="file://$MODULE_DIR$" dumb="true">
+      <sourceFolder url="file://$MODULE_DIR$/robots/src/main" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/robots/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/robots/src/resources" type="java-resource" />
+    </content>
+  </component>
+</module>

pom.xml

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+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>com.example</groupId>
+    <artifactId>Robots</artifactId>
+    <version>1.0.0</version>
+    <name>Robots</name>
+    <packaging>jar</packaging>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.jetbrains</groupId>
+            <artifactId>annotations</artifactId>
+            <version>13.0</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.thoughtworks.xstream</groupId>
+            <artifactId>xstream</artifactId>
+            <version>1.4.3</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <sourceDirectory>robots/src</sourceDirectory>
+        <outputDirectory>../Robots/bin</outputDirectory>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <source>10</source>
+                    <target>10</target>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

robots/src/main/java/gui/AbstarctWindowState.java

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+package gui;
+
+import java.beans.PropertyVetoException;
+import java.util.prefs.Preferences;
+import javax.swing.JInternalFrame;
+
+public abstract class AbstarctWindowState extends JInternalFrame implements FrameState {
+    private static final String prefixWindowPreferences = formatTitle("window preferences");
+    private static final String prefixWindowPositionX = formatTitle("position x");
+    private static final String prefixWindowPositionY = formatTitle("position y");
+    private static final String prefixWindowSizeWidth = formatTitle("size width");
+    private static final String prefixWindowSizeHeight = formatTitle("size height");
+    private static final String prefixWindowIsMinimised = formatTitle("is minimised");
+    private final JInternalFrame frame = this;
+
+    public AbstarctWindowState(String string, boolean b, boolean b1, boolean b2, boolean b3) {
+        super(string, b, b1, b2, b3);
+    }
+
+
+    private static Preferences getPreferences() {
+        return Preferences.userRoot().node(prefixWindowPreferences);
+    }
+    private static String formatTitle(String title) {
+        String cased = title.toUpperCase();
+
+        return cased.replaceAll(" +", "_");
+    }
+
+    public void saveWindow() {
+        Preferences preferences = getPreferences();
+
+        String title = formatTitle(frame.getTitle());
+
+        preferences.putInt(prefixWindowPositionX + title, frame.getX());
+        preferences.putInt(prefixWindowPositionY + title, frame.getY());
+        preferences.putInt(prefixWindowSizeWidth + title, frame.getWidth());
+        preferences.putInt(prefixWindowSizeHeight + title, frame.getHeight());
+        preferences.putBoolean(prefixWindowIsMinimised + title, frame.isIcon());
+    }
+
+    public  void restoreWindow() {
+        Preferences preferences = getPreferences();
+        final int missing = -1;
+
+        String title = formatTitle(frame.getTitle());
+
+        int x = preferences.getInt(prefixWindowPositionX + title, missing);
+        int y = preferences.getInt(prefixWindowPositionY + title, missing);
+        int width = preferences.getInt(prefixWindowSizeWidth + title, missing);
+        int height = preferences.getInt(prefixWindowSizeHeight + title, missing);
+        boolean isMinimised = preferences.getBoolean(prefixWindowIsMinimised + title, false);
+
+        if (x == -1 || y == -1 || width == -1 || height == -1)
+            return;
+
+        frame.setBounds(x, y, width, height);
+        try {
+            frame.setIcon(isMinimised);
+        } catch (PropertyVetoException e) {
+            e.printStackTrace(System.out);
+        }
+    }
+}