Can I store multiple objects in an array

[lareauk]

I am working on an array and want to store entries that will have multiple objects - for example a student, a student with a car, etc.

I know the syntax to store one object, but not multiples.

[sukatoa]

try ArrayList<Object>

[lareauk]

I am new this this forum, so wasn't quite sure what or how to ask.

I managed to solve this by storing objects within objects prior to storing within an array. For example, I put the car object (which contains brand, cost & miles) into the student object prior to putting into the array.

[Eranga]

Can you show your code, what you have done up to now.

[M77]

Object[] arr = new Object[10];
arr[0]="Ordinary String";
arr[1]=new Integer(77);
System.out.println((String)arr[0]);
if (arr[1] instanceof Integer) System.out.println(((Integer)arr[1]).toString());

[lareauk]

I pass information to this method which can include just the student info or the student info and either a credit card object or a car object, which then gets stored in the array.

//An array for holding students and their information
//about credit cards and cars.
protected Student[] studentCollection;

//for holding the total number of items in Student array
protected int manyItems = 0;

/**
* Method to create classroom based on size from tester
*/
public ClassRoom (int size)
{
StudentCollection = new Student[size];
}

/**
* Method to populate array with only Student information
*/
public void addStudent (Student newStudent, int index)
{
studentCollection[index] = newStudent;
manyItems++;
}

/**
* Method to populate array with Student & CreditCard information
*/
public void addStudent (Student newStudent, CreditCard newCreditCard,
int index)
{
studentCollection[index] = newStudent;
manyItems++;
}

/**
* Method to populate array with Student & Car information
*/
public void addStudent (Student newStudent, Car newCar, int index)
{
studentCollection[index] = newStudent;
manyItems++;
}

[gogoc]

any array or any thing other then primitive types are objects in java so u can store any thing in an object array .

[Eranga]

Including strings too. It's not a primitive data type. Most of the people confused on it.

[Zosden]

you could store primitive too if you do new Integer(42)

[Eranga]

Yes thats true.