• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Passing Array of objects to a different class

 
Greenhorn
Posts: 1
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
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.
 
Ranch Hand
Posts: 904
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi,

How about making an accessor method ?


/Svend Rost
 
Sheriff
Posts: 11343
Mac Safari Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Pass the array of objects from the first class to the constructor of the second class?

 
Ranch Hand
Posts: 280
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
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
Ranch Hand
Posts: 904
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
@ 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
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
reply
    Bookmark Topic Watch Topic
  • New Topic