no message

src/main/java/seedu/address/logic/commands/DeleteClientCommand.java

@@ -0,0 +1,69 @@
+package seedu.address.logic.commands;
+
+import seedu.address.commons.core.index.Index;
+import seedu.address.commons.util.ToStringBuilder;
+import seedu.address.logic.Messages;
+import seedu.address.logic.commands.exceptions.CommandException;
+import seedu.address.model.Model;
+import seedu.address.model.client.Client;
+
+import java.util.List;
+
+import static java.util.Objects.requireNonNull;
+
+/**
+ * Deletes a developer identified using it's displayed index from the address book.
+ */
+public class DeleteClientCommand extends Command {
+
+    public static final String COMMAND_WORD = "delete-client";
+
+    public static final String MESSAGE_USAGE = COMMAND_WORD
+            + ": Deletes the client identified by the index number used in the displayed developer list.\n"
+            + "Parameters: INDEX (must be a positive integer)\n"
+            + "Example: " + COMMAND_WORD + " 1";
+
+    public static final String MESSAGE_DELETE_CLIENT_SUCCESS = "Deleted Client: %1$s";
+
+    private final Index targetIndex;
+
+    public DeleteClientCommand (Index targetIndex) {
+        this.targetIndex = targetIndex;
+    }
+
+    @Override
+    public CommandResult execute(Model model) throws CommandException {
+        requireNonNull(model);
+        List<Client> lastShownList = model.getFilteredClientList();
+
+        if (targetIndex.getZeroBased() >= lastShownList.size()) {
+            throw new CommandException(Messages.MESSAGE_INVALID_CLIENT_DISPLAYED_INDEX);
+        }
+
+        Client clientToDelete = lastShownList.get(targetIndex.getZeroBased());
+        model.deleteClient(clientToDelete);
+        return new CommandResult(String.format(MESSAGE_DELETE_CLIENT_SUCCESS, Messages.format(clientToDelete)),TabIndex.Client);
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        if (other == this) {
+            return true;
+        }
+
+        // instanceof handles nulls
+        if (!(other instanceof DeleteClientCommand)) {
+            return false;
+        }
+
+        DeleteClientCommand otherDeleteClientCommand = (DeleteClientCommand) other;
+        return targetIndex.equals(otherDeleteClientCommand.targetIndex);
+    }
+
+    @Override
+    public String toString() {
+        return new ToStringBuilder(this)
+                .add("targetIndex", targetIndex)
+                .toString();
+    }
+}

src/main/java/seedu/address/logic/parser/DeleteClientCommandParser.java

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+package seedu.address.logic.parser;
+
+import seedu.address.commons.core.index.Index;
+import seedu.address.logic.commands.DeleteClientCommand;
+import seedu.address.logic.commands.DeleteDeveloperCommand;
+import seedu.address.logic.parser.exceptions.ParseException;
+
+import static seedu.address.logic.Messages.MESSAGE_INVALID_COMMAND_FORMAT;
+
+/**
+ * Parses input arguments and creates a new DeleteDeveloperCommand object
+ */
+public class DeleteClientCommandParser implements Parser<DeleteClientCommand> {
+
+    /**
+     * Parses the given {@code String} of arguments in the context of the DeleteDeveloperCommand
+     * and returns a DeleteDeveloperCommand object for execution.
+     * @throws ParseException if the user input does not conform the expected format
+     */
+    public DeleteClientCommand parse(String args) throws ParseException {
+        try {
+            Index index = ParserUtil.parseIndex(args);
+            return new DeleteClientCommand(index);
+        } catch (ParseException pe) {
+            throw new ParseException(
+                    String.format(MESSAGE_INVALID_COMMAND_FORMAT, DeleteClientCommand.MESSAGE_USAGE), pe);
+        }
+    }
+
+}