refactor address into revision. Update Khiang Leon's delete command

build.gradle

@@ -15,7 +15,7 @@ plugins {
 }
 
 // Specifies the entry point of the application
-mainClassName = 'seedu.address.Main'
+mainClassName = 'seedu.revision.Main'
 
 sourceCompatibility = JavaVersion.VERSION_11
 targetCompatibility = JavaVersion.VERSION_11

docs/tutorials/AddRemark.adoc

@@ -34,11 +34,11 @@ For now, let's keep `RemarkCommand` as simple as possible and print some output.
 We accomplish that by returning a `CommandResult` with an accompanying message.
 
 .RemarkCommand.java
-[source, java]
+[source,java]
 ----
-package seedu.address.logic.commands;
+package seedu.revision.logic.commands;
 
-import seedu.address.model.Model;
+import seedu.revision.model.Model;
 
 /**
  * Changes the remark of an existing person in the address book.
@@ -108,9 +108,9 @@ We start by modifying the constructor of `RemarkCommand` to accept an `Index` an
 While we are at it, let's change the error message to echo the values.
 While this is not a replacement for tests, it is an obvious way to tell if our code is functioning as intended.
 
-[source, java]
+[source,java]
 ----
-import static seedu.address.commons.util.CollectionUtil.requireAllNonNull;
+import static seedu.revision.commons.util.CollectionUtil.requireAllNonNull;
 //...
 public class RemarkCommand extends Command {
     //...

src/main/java/seedu/address/AppParameters.java → src/main/java/seedu/revision/AppParameters.java

@@ -1,4 +1,4 @@
-package seedu.address;
+package seedu.revision;
 
 import java.nio.file.Path;
 import java.nio.file.Paths;
@@ -7,8 +7,8 @@
 import java.util.logging.Logger;
 
 import javafx.application.Application;
-import seedu.address.commons.core.LogsCenter;
-import seedu.address.commons.util.FileUtil;
+import seedu.revision.commons.core.LogsCenter;
+import seedu.revision.commons.util.FileUtil;
 
 /**
  * Represents the parsed command-line parameters given to the application.

src/main/java/seedu/address/Main.java → src/main/java/seedu/revision/Main.java

@@ -1,4 +1,4 @@
-package seedu.address;
+package seedu.revision;
 
 import javafx.application.Application;
 

src/main/java/seedu/address/MainApp.java → src/main/java/seedu/revision/MainApp.java

@@ -1,4 +1,4 @@
-package seedu.address;
+package seedu.revision;
 
 import java.io.IOException;
 import java.nio.file.Path;
@@ -7,29 +7,29 @@
 
 import javafx.application.Application;
 import javafx.stage.Stage;
-import seedu.address.commons.core.Config;
-import seedu.address.commons.core.LogsCenter;
-import seedu.address.commons.core.Version;
-import seedu.address.commons.exceptions.DataConversionException;
-import seedu.address.commons.util.ConfigUtil;
-import seedu.address.commons.util.StringUtil;
-import seedu.address.logic.Logic;
-import seedu.address.logic.LogicManager;
-import seedu.address.model.AddressBook;
-import seedu.address.model.Model;
-import seedu.address.model.ModelManager;
-import seedu.address.model.ReadOnlyAddressBook;
-import seedu.address.model.ReadOnlyUserPrefs;
-import seedu.address.model.UserPrefs;
-import seedu.address.model.util.SampleDataUtil;
-import seedu.address.storage.AddressBookStorage;
-import seedu.address.storage.JsonAddressBookStorage;
-import seedu.address.storage.JsonUserPrefsStorage;
-import seedu.address.storage.Storage;
-import seedu.address.storage.StorageManager;
-import seedu.address.storage.UserPrefsStorage;
-import seedu.address.ui.Ui;
-import seedu.address.ui.UiManager;
+import seedu.revision.commons.core.Config;
+import seedu.revision.commons.core.LogsCenter;
+import seedu.revision.commons.core.Version;
+import seedu.revision.commons.exceptions.DataConversionException;
+import seedu.revision.commons.util.ConfigUtil;
+import seedu.revision.commons.util.StringUtil;
+import seedu.revision.logic.Logic;
+import seedu.revision.logic.LogicManager;
+import seedu.revision.model.AddressBook;
+import seedu.revision.model.Model;
+import seedu.revision.model.ModelManager;
+import seedu.revision.model.ReadOnlyAddressBook;
+import seedu.revision.model.ReadOnlyUserPrefs;
+import seedu.revision.model.UserPrefs;
+import seedu.revision.model.util.SampleDataUtil;
+import seedu.revision.storage.AddressBookStorage;
+import seedu.revision.storage.JsonAddressBookStorage;
+import seedu.revision.storage.JsonUserPrefsStorage;
+import seedu.revision.storage.Storage;
+import seedu.revision.storage.StorageManager;
+import seedu.revision.storage.UserPrefsStorage;
+import seedu.revision.ui.Ui;
+import seedu.revision.ui.UiManager;
 
 /**
  * Runs the application.
@@ -69,9 +69,9 @@ public void init() throws Exception {
     }
 
     /**
-     * Returns a {@code ModelManager} with the data from {@code storage}'s address book and {@code userPrefs}. <br>
-     * The data from the sample address book will be used instead if {@code storage}'s address book is not found,
-     * or an empty address book will be used instead if errors occur when reading {@code storage}'s address book.
+     * Returns a {@code ModelManager} with the data from {@code storage}'s revision tool and {@code userPrefs}. <br>
+     * The data from the sample revision tool will be used instead if {@code storage}'s revision tool is not found,
+     * or an empty revision tool will be used instead if errors occur when reading {@code storage}'s revision tool.
      */
     private Model initModelManager(Storage storage, ReadOnlyUserPrefs userPrefs) {
         Optional<ReadOnlyAddressBook> addressBookOptional;

src/main/java/seedu/address/commons/core/Config.java → src/main/java/seedu/revision/commons/core/Config.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.core;
+package seedu.revision.commons.core;
 
 import java.nio.file.Path;
 import java.nio.file.Paths;

src/main/java/seedu/address/commons/core/GuiSettings.java → src/main/java/seedu/revision/commons/core/GuiSettings.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.core;
+package seedu.revision.commons.core;
 
 import java.awt.Point;
 import java.io.Serializable;

src/main/java/seedu/address/commons/core/LogsCenter.java → src/main/java/seedu/revision/commons/core/LogsCenter.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.core;
+package seedu.revision.commons.core;
 
 import java.io.IOException;
 import java.util.Arrays;

src/main/java/seedu/address/commons/core/Messages.java → src/main/java/seedu/revision/commons/core/Messages.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.core;
+package seedu.revision.commons.core;
 
 /**
  * Container for user visible messages.

src/main/java/seedu/address/commons/core/Version.java → src/main/java/seedu/revision/commons/core/Version.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.core;
+package seedu.revision.commons.core;
 
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;

src/main/java/seedu/address/commons/core/index/Index.java → src/main/java/seedu/revision/commons/core/index/Index.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.core.index;
+package seedu.revision.commons.core.index;
 
 /**
  * Represents a zero-based or one-based index.

src/main/java/seedu/address/commons/exceptions/DataConversionException.java → src/main/java/seedu/revision/commons/exceptions/DataConversionException.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.exceptions;
+package seedu.revision.commons.exceptions;
 
 /**
  * Represents an error during conversion of data from one format to another

src/main/java/seedu/address/commons/exceptions/IllegalValueException.java → src/main/java/seedu/revision/commons/exceptions/IllegalValueException.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.exceptions;
+package seedu.revision.commons.exceptions;
 
 /**
  * Signals that some given data does not fulfill some constraints.

src/main/java/seedu/address/commons/util/AppUtil.java → src/main/java/seedu/revision/commons/util/AppUtil.java

@@ -1,9 +1,9 @@
-package seedu.address.commons.util;
+package seedu.revision.commons.util;
 
 import static java.util.Objects.requireNonNull;
 
 import javafx.scene.image.Image;
-import seedu.address.MainApp;
+import seedu.revision.MainApp;
 
 /**
  * A container for App specific utility functions

src/main/java/seedu/address/commons/util/CollectionUtil.java → src/main/java/seedu/revision/commons/util/CollectionUtil.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.util;
+package seedu.revision.commons.util;
 
 import static java.util.Objects.requireNonNull;
 

src/main/java/seedu/address/commons/util/ConfigUtil.java → src/main/java/seedu/revision/commons/util/ConfigUtil.java

@@ -1,11 +1,11 @@
-package seedu.address.commons.util;
+package seedu.revision.commons.util;
 
 import java.io.IOException;
 import java.nio.file.Path;
 import java.util.Optional;
 
-import seedu.address.commons.core.Config;
-import seedu.address.commons.exceptions.DataConversionException;
+import seedu.revision.commons.core.Config;
+import seedu.revision.commons.exceptions.DataConversionException;
 
 /**
  * A class for accessing the Config File.

src/main/java/seedu/address/commons/util/FileUtil.java → src/main/java/seedu/revision/commons/util/FileUtil.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.util;
+package seedu.revision.commons.util;
 
 import java.io.IOException;
 import java.nio.file.Files;

src/main/java/seedu/address/commons/util/JsonUtil.java → src/main/java/seedu/revision/commons/util/JsonUtil.java

@@ -1,4 +1,4 @@
-package seedu.address.commons.util;
+package seedu.revision.commons.util;
 
 import static java.util.Objects.requireNonNull;
 
@@ -20,8 +20,8 @@
 import com.fasterxml.jackson.databind.module.SimpleModule;
 import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
 
-import seedu.address.commons.core.LogsCenter;
-import seedu.address.commons.exceptions.DataConversionException;
+import seedu.revision.commons.core.LogsCenter;
+import seedu.revision.commons.exceptions.DataConversionException;
 
 /**
  * Converts a Java object instance to JSON and vice versa

src/main/java/seedu/address/commons/util/StringUtil.java → src/main/java/seedu/revision/commons/util/StringUtil.java

@@ -1,7 +1,7 @@
-package seedu.address.commons.util;
+package seedu.revision.commons.util;
 
 import static java.util.Objects.requireNonNull;
-import static seedu.address.commons.util.AppUtil.checkArgument;
+import static seedu.revision.commons.util.AppUtil.checkArgument;
 
 import java.io.PrintWriter;
 import java.io.StringWriter;

src/main/java/seedu/address/logic/Logic.java → src/main/java/seedu/revision/logic/Logic.java

@@ -1,14 +1,14 @@
-package seedu.address.logic;
+package seedu.revision.logic;
 
 import java.nio.file.Path;
 
 import javafx.collections.ObservableList;
-import seedu.address.commons.core.GuiSettings;
-import seedu.address.logic.commands.CommandResult;
-import seedu.address.logic.commands.exceptions.CommandException;
-import seedu.address.logic.parser.exceptions.ParseException;
-import seedu.address.model.ReadOnlyAddressBook;
-import seedu.address.model.answerable.Answerable;
+import seedu.revision.commons.core.GuiSettings;
+import seedu.revision.logic.commands.CommandResult;
+import seedu.revision.logic.commands.exceptions.CommandException;
+import seedu.revision.logic.parser.exceptions.ParseException;
+import seedu.revision.model.ReadOnlyAddressBook;
+import seedu.revision.model.answerable.Answerable;
 
 /**
  * API of the Logic component
@@ -26,15 +26,15 @@ public interface Logic {
     /**
      * Returns the AddressBook.
      *
-     * @see seedu.address.model.Model#getAddressBook()
+     * @see seedu.revision.model.Model#getAddressBook()
      */
     ReadOnlyAddressBook getAddressBook();
 
     /** Returns an unmodifiable view of the filtered list of answerables */
     ObservableList<Answerable> getFilteredAnswerableList();
 
     /**
-     * Returns the user prefs' address book file path.
+     * Returns the user prefs' revision tool file path.
      */
     Path getAddressBookFilePath();
 

src/main/java/seedu/address/logic/LogicManager.java → src/main/java/seedu/revision/logic/LogicManager.java

@@ -1,21 +1,21 @@
-package seedu.address.logic;
+package seedu.revision.logic;
 
 import java.io.IOException;
 import java.nio.file.Path;
 import java.util.logging.Logger;
 
 import javafx.collections.ObservableList;
-import seedu.address.commons.core.GuiSettings;
-import seedu.address.commons.core.LogsCenter;
-import seedu.address.logic.commands.Command;
-import seedu.address.logic.commands.CommandResult;
-import seedu.address.logic.commands.exceptions.CommandException;
-import seedu.address.logic.parser.AddressBookParser;
-import seedu.address.logic.parser.exceptions.ParseException;
-import seedu.address.model.Model;
-import seedu.address.model.ReadOnlyAddressBook;
-import seedu.address.model.answerable.Answerable;
-import seedu.address.storage.Storage;
+import seedu.revision.commons.core.GuiSettings;
+import seedu.revision.commons.core.LogsCenter;
+import seedu.revision.logic.commands.Command;
+import seedu.revision.logic.commands.CommandResult;
+import seedu.revision.logic.commands.exceptions.CommandException;
+import seedu.revision.logic.parser.AddressBookParser;
+import seedu.revision.logic.parser.exceptions.ParseException;
+import seedu.revision.model.Model;
+import seedu.revision.model.ReadOnlyAddressBook;
+import seedu.revision.model.answerable.Answerable;
+import seedu.revision.storage.Storage;
 
 /**
  * The main LogicManager of the app.

src/main/java/seedu/address/logic/commands/AddCommand.java → src/main/java/seedu/revision/logic/commands/AddCommand.java

@@ -1,16 +1,16 @@
-package seedu.address.logic.commands;
+package seedu.revision.logic.commands;
 
 import static java.util.Objects.requireNonNull;
-import static seedu.address.logic.parser.CliSyntax.PREFIX_CATEGORY;
-import static seedu.address.logic.parser.CliSyntax.PREFIX_QUESTION;
-import static seedu.address.logic.parser.CliSyntax.PREFIX_DIFFICULTY;
+import static seedu.revision.logic.parser.CliSyntax.PREFIX_CATEGORY;
+import static seedu.revision.logic.parser.CliSyntax.PREFIX_QUESTION;
+import static seedu.revision.logic.parser.CliSyntax.PREFIX_DIFFICULTY;
 
-import seedu.address.logic.commands.exceptions.CommandException;
-import seedu.address.model.Model;
-import seedu.address.model.answerable.Answerable;
+import seedu.revision.logic.commands.exceptions.CommandException;
+import seedu.revision.model.Model;
+import seedu.revision.model.answerable.Answerable;
 
 /**
- * Adds a answerable to the address book.
+ * Adds a answerable to the revision tool.
  */
 public class AddCommand extends Command {