Using Java in netbeans

The AssemblyLine class has a potential problem. Since the only way you can remove an object from the AssemblyLine array is when the insert method returns an object from the last element of the AssemblyLine's encapsulated array, what about those ManufacturedProduct objects that are "left hanging" in the array because they never got to the last element position? How do we get them out?

Lab $4$B is to modify your project so you can deal with the above problem and return those objects.

Code:

Manufactured Product Class:

import java.util.Random;

public class ManufacturedProduct $\{$

private int productId;

private boolean passedInspection;

$//$ Constructor

public ManufacturedProduct$($int productId$)\{$

this.productId $=$ productId;

$//$ Set a default value for inspection $($true or false$)$

this.passedInspection $=$ inspectProduct$()$;

$\}$

$//$ Getter for productId

public int getProductId$()\{$

return productId;

$\}$

$//$ Inspection method

public void inspection$()\{$

this.passedInspection $=$ inspectProduct$()$;

$\}$

$//$ toString method

@Override

public String toString$()\{$

return "ManufacturedProduct$\{"+$

"productId$="+$ productId $+$

$",$ passedInspection$="+$ passedInspection $+$

$\text{'}\}\text{'}$;

$\}$

$//$ Private method to simulate inspection

private boolean inspectProduct$()\{$

Random random $=$ new Random$()$;

int randomNumber $=$ random.nextInt$(20)$;

return randomNumber $!=0$;

$\}$

$\}$

AssemblyLine Class:

public class AssemblyLine $\{$

private ManufacturedProduct$[]$ assemblyLineArray;

$//$ Constructor

public AssemblyLine$()\{$

this.assemblyLineArray $=$ new ManufacturedProduct$[5]$;

$\}$

$//$ Insert method

public ManufacturedProduct insert$($ManufacturedProduct newProduct$)\{$

$//$ Shift elements up

for $($int i $=$ assemblyLineArray.length $-1$; i $>0$; i$--)\{$

assemblyLineArray$[$i$]=$ assemblyLineArray$[$i $-1]$;

$\}$

$//$ Add the new product to the first position

assemblyLineArray$[0]=$ newProduct;

$//$ Return the last element of the array $($element $4)$

return assemblyLineArray$[$assemblyLineArray$.$length $-1]$;

$\}$

$\}$

AssemblyLineTest Class:

public class AssemblyLineTest $\{$

public static void main$($String$[]$ args$)\{$

AssemblyLine assemblyLine $=$ new AssemblyLine$()$;

$//$ Insert $20$ ManufacturedProduct objects into the AssemblyLine

for $($int i $=1$; i $<=20$; i$++)\{$

ManufacturedProduct product $=$ new ManufacturedProduct$($i$)$;

assemblyLine.insert$($product$)$;

$//$ Display a report on each object

System.out.println$("$Report for ManufacturedProduct #$"+$ i $+"$:$")$;

System.out.println$($product$)$;

System.out.println$("--------------")$;

$\}$

$\}$

$\}$