Passing Array of objects to a different class

[K Regan]

Any ideas how I can use an array of objects that I have created in one class, in another class?

Sounds really simple but is giving me major problems.

[Svend Rost]

Hi,

How about making an accessor method ?

class Foo
{
 <arrayType> myArray[] = <expr>
 
 public <arrayType> getMyArray()
  {
    return myArray;
  } 
}
 

/Svend Rost

[marc weber]

Pass the array of objects from the first class to the constructor of the second class?

class First{
  Object[] ob = new Object[10];
  public static void main(String[] args){
    First f = new First();
    Second s = new Second(f.ob);
  }
}
 
class Second{
  Object[] ob;
  Second(Object[] ob){
    this.ob = ob;
  }
}

[Amit Saini]

You can just use an instance of the class to access its array.
Consider this.

class1.java
------------
public class class1
{
public String firstName;
public String lastName;

class1(){};

class1(String firstName, String lastName)
{
this.firstName = firstName;
this.lastName = lastName;
}
}

class2.java (Create an array c1array of class1 objects)
--------------
public class class2
{
public class1 c1 = new class1("Amit", "Saini");
public class1 c2 = new class1("Rohit", "Saini");
public class1 c1array[] = {c1,c2}; //array of class1's objects
}

class3.java (Use the array created in class2)
-------------
public class class3
{
public static void main(String args[])
{
class2 c2 = new class2();
for (int i=0; i<c2.c1array.length; ++i)
{
System.out.println(c2.c1array[i].firstName + " " + c2.c1array[i].lastName);
}
}
}

OUTPUT
----------
C:\eclipse\workspace\helloworld>java class3
Amit Saini
Rohit Saini

Hope this helps!
Amit

[Svend Rost]

@ amitdsaini:

Even though your approach works, one should try to
obey the Law of Demeter aka. Don't talk to strangers
http://www.ccs.neu.edu/home/lieber/LoD.html

/Svend Rost