Calling a parametrized method from librarycollection class to main class

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I am working on library management system project. Below is my LibraryCollection class. I would like to call my checkOutMaterial() method in the main class.

I need help on how to call the method.

public class LibraryCollection {

    private int collectionMaxSize;
    private Material[] libraryCollection;

    public LibraryCollection(int theMaxSize) {
        collectionMaxSize = theMaxSize;
        libraryCollection = new Material[collectionMaxSize];
    }

    public LibraryCollection(int theCollectSize, Material[] theArray) {
        collectionMaxSize = theCollectSize;
        libraryCollection = theArray;
    }

//Material ID & checkedOutPtron ID; 
    public boolean checkOutMaterial(String matrlID, String patronId) {
        Material thisMaterial = findMaterial(matrlID);
        if (thisMaterial == null) {
            System.out.println("The material doesn't exist");
            return false;
        }
        if (thisMaterial.checkedOut()) {
            System.out.println("The material has been already checked out ");
            return false;
        }
        thisMaterial.setCheckedOut(true);
        thisMaterial.setPatronCheckout(Integer.parseInt(patronId));//Convert string value into int

        return true;
    }
}

Material Class

public class Material {

    private static int materialID = 0;
    private int mtrId;
    private String title;
    private boolean checkedOut;
    private int checkedOutPatron;

    public Material() {
        mtrId = 0;
        title = "";
        checkedOut = false;
        checkedOutPatron = 0;
    }

    public Material(int theId, String theTitle) {
        mtrId = theId;
        title = theTitle;
    }

//Getter Method 
    public String getMaterialId() {
        return mtrId + "";
    }

    public String getTitle() {
        return title;
    }

    public void setCheckedOut(boolean theCheckout) {
        checkedOut = theCheckout;
    }

    public void setPatronCheckout(int patronCheckout) {
        checkedOutPatron = patronCheckout;
    }

    public boolean checkedOut() {
        return checkedOut;
    }

    public int getCheckedOutPatron() {
        return checkedOutPatron;
    }

//ToString Method 
    public String toString() {
        return " \nMaterial ID: " + mtrId + " \nMaterial Title: " + title + " \nChecked Out: "
                + checkedOut + " \nPatron check out: " + checkedOutPatron;
    }

    public static int getNextID() {
        materialID++;
        return materialID;
    }
}

What I have tried:

public static LibraryCollection librarycollectObj1 = new LibraryCollection(10);

Posted 23-May-18 10:00am

Member 13841462

Updated 24-May-18 5:36am

wseng

v2

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Comments

wseng 24-May-18 11:38am

Where is your main method ?

Member 13841462 25-May-18 1:17am

import java.util.Scanner;

public class LibraryCollectionManager
{
public static Scanner keyboard = new Scanner(System.in);
public static PatronCollection patronObj = new PatronCollection(10);
public static LibraryCollection librarycollectObj = new LibraryCollection(10);
public static FileManager file = new FileManager();

public static void main(String[]args)
{
printMainMenu();
}

public static void printMainMenu()
{
while(true)
{
System.out.println("----------MAIN MENU----------");
System.out.println("1.Manage Material");
System.out.println("2.Manage Patrons");
System.out.println("3.Load/Save Data");
System.out.println("4.Exit");
System.out.println("------------------------");

System.out.println("Enter your choice :"); //read user choice
int userChoice = keyboard.nextInt();//returns the userChoice value

switch(userChoice)

{
case 1:
materialSubMenu();
break;

case 2:
patronSubMenu();
break;

case 3:
dataSubMenu();
break;

case 4:
System.exit(0);
break;

default:
System.out.println("This is not a valid entry, try again please");
break;

}//End switch
}//End While

}//End printMainMenu

public static void materialSubMenu()
{

while(true)
{
System.out.println("----------MATERIAL MENU----------");
System.out.println("1.Display all materials");
System.out.println("2.Find materials");
System.out.println("3.Checkout a material");
System.out.println("4.Return a checked out material");
System.out.println("5.Add a new material");
System.out.println("6.Remove a material");
System.out.println("7.Return to main menu");
System.out.println("------------------------");

System.out.println("Enter your choice :"); //read user choice
int userChoice = keyboard.nextInt();//returns the userChoice value

switch(userChoice)
{
case 1:
librarycollectObj.displayMaterials();
break;

case 2:
String test = "search";
Material materialObj = new Material();
materialObj = librarycollectObj.findMaterial(test);
break;

case 3:
boolean check;
String str1 = "test";
String str2 = "test";
check = librarycollectObj.checkOutMaterial(str1, str2);
break;

case 4:
break;

case 5:
addMaterialSubMenu();
break;

case 6:
removeMaterialSubMenu();
break;

case 7:
printMainMenu();
return;

default:
System.out.println("This is not a valid option, try again");
break;
}//End switch
}//End while
}//materialSubMenu

//Add Material Sub-Menu
public static void addMaterialSubMenu()
{
while(true)
{
System.out.println("----------ADD MATERIAL SUB-MENU----------");
System.out.println("1.Add book");
System.out.println("2.Add magazine");
System.out.println("3.Add video");
System.out.println("4.Return to main menu");
System.out.println("------------------------");

System.out.println("Enter your choice :"); //read user choice
int userChoice = keyboard.nextInt();//returns the userChoice value

switch(userChoice)
{
case 1:
Book book1 = new Book();
boolean successfullyAdded = librarycollectObj.addBook(book1);
if(successfullyAdded == true)
{
System.out.println("> You have successfully added the book to the library!\n");
}
else {
System.out.println("The library is full and book was not added! " );
}
break;

case 2:
Magazine mag1 = new Magazine();
successfullyAdded = librarycollectObj.addMagazine(mag1);
if(successfullyAdded == true)
{
System.out.println("> You have successfully added the magazine to the library!\n");
}
else {
System.out.println("The library is full and magazine was not added! " );
}
break;

case 3:
Video video1 = new Video();
successfullyAdded = libra

wseng 25-May-18 2:51am

the code looked fine to me . Can you call that method now ?

Member 13841462 25-May-18 2:52am

oh actually, I figured it out. Thanks. I will mark solved this question.

wseng 25-May-18 2:54am

Alright.

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