How to read a method that's an array? in java

Question

this is partly homework I've been given some code to use and I am trying to figure out one part of it...

   public PhoneAccount[] getAllAccounts() {
      return tm.values().toArray(new PhoneAccount[tm.size()]);
   }

I am trying to find out how to read this in my main method, I've created the instance of the class this is. Which I named "am"

What exactly do I need to do to make it list the contents of the array?

am.getAllAccounts()

is what it is, just not sure how do I make it print its contents?

vikiiii · Accepted Answer · 2012-08-29 10:15:37Z

1

Suppose you have totalBill property in PhoneAccount , then you can print it using the below code.

PhoneAccount[] phoneaccounts = am.getAllAccounts() ;
for( PhoneAccount phoneaccount  : phoneaccounts)
{
 System.out.println(phoneaccount.getTotalBill());
// fetch all the  other properties from phoneaccoun similarly.
}

answered Aug 29, 2012 at 10:15

vikiiii

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1 Comment

Butterflycode Over a year ago

This one is perfect! Thank you very much :)

Peter Lawrey · Accepted Answer · 2012-08-29 10:15:27Z

1

You can do the following assuming your PhoneAccount has a sensible toString() implementation.

System.out.println(Arrays.toString(am.getAllAccounts()));

answered Aug 29, 2012 at 10:15

Peter Lawrey

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Comments

ABLX · Accepted Answer · 2012-08-29 10:17:05Z

0

Do you have a proper .toString() method in your PhoneAccount-Class? And what values do you want to get? It would be easy to use a foreach-loop to get the informations and put these in a new array which is returned

answered Aug 29, 2012 at 10:17

ABLX

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iaindownie · Accepted Answer · 2012-08-29 10:22:52Z

0

Since you have an object called PhoneAccount, you should create a new method inside that which prints out the contents, which you call from your main. Without seeing more detail on the class it's difficult to tell, but probably the simplest way would be something like:

public void printArray(){
   System.out.println(myArray.toString());
}

This will print to the console. Alternatively you could add a loop within the method to print out each array element individually.

answered Aug 29, 2012 at 10:22

iaindownie

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