Create a class diagram with these classes. Name the arguments whatever makes sense for these situations:

ConnectionMgr class

Attributes:

instance $($ConnectionMgr$)$

connections $($List of BaseConnection objects$)$

Methods:

createInstance$()$ returning ConnectionMgr

getInstance$()$ returning ConnectionMgr

CTOR $($constructor$)$

getConnection$($String argument$)$ returning BaseConnection

BaseConnection class $($abstract$)$

Attributes:

unreadMessages$($list of Message objects$)$

Methods:

nextMessage$()$ returning Message object

sendMessage$($Message argument$)$

BluetoothConnection class

Attributes:

remoteHost$($String$)$

Methods:

CTOR $($String IP and int port$)$

isConnected$()$ returning bool

Message class

Attributes:

date $($Date$)$

theMessage $($String$)$

Methods:

CTOR$($String called theMessage$)$

Getters for both attributes

Relationships

ConnectionMgr has a $1..$n relationship with BaseConnection

BaseConnection has a $1..$n relationship with Message

BluetoothConnection extends BaseConnectionCreate a class diagram with these classes. Name the arguments whatever makes sense for these situations:

ConnectionMgr class

Attributes:

instance $($ConnectionMgr$)$

connections $($List of BaseConnection objects$)$

Methods:

createInstance$()$ returning ConnectionMgr

getInstance$()$ returning ConnectionMgr

CTOR $($constructor$)$

getConnection$($String argument$)$ returning BaseConnection

BaseConnection class $($abstract$)$

Attributes:

unreadMessages$($list of Message objects$)$

Methods:

nextMessage$()$ returning Message object

sendMessage$($Message argument$)$

BluetoothConnection class

Attributes:

remoteHost$($String$)$

Methods:

CTOR $($String IP and int port$)$

isConnected$()$ returning bool

Message class

Attributes:

date $($Date$)$

theMessage $($String$)$

Methods:

CTOR$($String called theMessage$)$

Getters for both attributes

Relationships

ConnectionMgr has a $1..$n relationship with BaseConnection

BaseConnection has a $1..$n relationship with Message

BluetoothConnection extends BaseConnectionCreate a class diagram with these classes. Name the arguments whatever makes sense for these situations:

ConnectionMgr class

a$.$ Attributes:

i$.$ instance $($ConnectionMgr$)$

ii$.$ connections $($List of BaseConnection objects$)$

b$.$ Methods:

i$.$ createlnstance$()$ returning ConnectionMgr

ii$.$ getInstance$()$ returning ConnectionMgr

iii. CTOR $($constructor$)$

iv$.$ getConnection$($String argument$)$ returning BaseConnection

BaseConnection class $($abstract$)$

a$.$ Attributes:

i$.$ unreadMessages$($list of Message objects$)$

b$.$ Methods:

i$.$ nextMessage$()$ returning Message object

ii$.$ sendMessage$($Message argument$)$

BluetoothConnection class

a$.$ Attributes:

i$.$ remoteHost$($String$)$

b$.$ Methods:

i$.$ CTOR $($String IP and int port$)$

ii$.$ isConnected$()$ returning bool

Message class

a$.$ Attributes:

i$.$ date $($Date$)$

ii$.$ theMessage $($String$)$

b$.$ Methods:

i$.$ CTOR$($String called theMessage$)$

ii$.$ Getters for both attributes

Relationships

a$.$ ConnectionMgr has a $1..$n relationship with BaseConnection

b$.$ BaseConnection has a $1..$n relationship with Message

c$.$ BluetoothConnection extends BaseConnection