How to create an array of objects

Hi Guys,

This is the problem I have


Partier lowie= new Partier(Buff, full, empty, mutex);
Partier duey= new Partier(Buff, full, empty, mutex);
Partier huey = new Partier(Buff, full, empty, mutex);


if I run lowie.start();
duey.start();
huey.start();

then I have no issues....

but I want to create a list of arrays such as lowie[0] lowie[1] lowie[2]

so that I can execute lowie[0].start();
lowie[1].start();
lowie[2].start();

how to declare an array of objects?
I know that I can't by declaring Partier lowie[] = new Partier[2];

thanks in advance.....I am not strong in the fundamentals..

Please have a look here: Arrays (The Java™ Tutorials > Learning the Java Language > Language Basics)

It's the best way to get stronger on the fundamentals.

Luck.

thanks for the link.....but it doesn't say how to solve my problem of creating an array of objects

Well, you create an array just as you said not to:

Quote:

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I know that I can't by declaring Partier lowie[] = new Partier[2];

---

I am getting this error

Code:

---

Exception in thread "main" java.lang.NullPointerException
        at Pledge_Party.main(Pledge_Party.java:153)

---

when I tried declaring it that way.

That's probably not due to declaring it like this but is likely because you haven't initialized the array items before using them.

Let's see your code. That'll probably clear this up.

I tried declaring it this way after picking up this code from a website

Code:

---

for(int i=0;i<4;i++)
          {
            rer[i] = new Partier(Buff, full, empty, mutex);
          }

---

I am able to run the program without any problems....

thanks!

Cool. Glad you have it working. Just one little bit of advice: if possible, let the array itself dictate the upper bound of the for loop:

Code:

---

for (int i = 0; i < rer.length; i++)
{
  rer[i] = new Partier(Buff, full, empty, mutex);
}

---

This will help prevent array index out of bounds errors.