Prompt:

When multiple documents are submitted to a printer, it may start printing multiple documents simultaneously, causing contents of different documents printed on the same paper. To address this issue, a software engineer has produced the following design to guarantee that no more than one document can be printed at the same time.

Study the design above and answer the following questions below. Q1: This design wont work if a printer were managed by multiple PrinterManager objects. Explain why is this so? Q2: What design pattern is used in this the design? Choose below and explain?

Singleton

Object Pool

Filter

Read-Only Interface

Motivation

Composite

Builder

Prototype

Abstract Factory

Factory Method

Proxy

Immutable Objects

Object Comparision

Marker Interface

Java Cloneable Interface

Q3:Is it possible to change the design to have one PrinterManager object manage many printers? Describe your solution.

Public void rundt We manager has a single dedicated print()); while(true) if (printer.is Ideox printer.print(getNextJob(): }else{ walt (100); }