Greenfoot

2019/2/19

#

Hi there, In my program, I want to use an ID System. It is going to sent to other classes as an String. (For example: An Oject of class test has the ID "1.3.5") No I want to get special parts of the ID but not the whole one. Has someone an idea how i can manage this? (I want to use this, so i won't have to send 3 different ints) Thank you in Advance ;-)

danpost

2019/2/19

#

Proprogrammer04 wrote...

In my program, I want to use an ID System. It is going to sent to other classes as an String. (For example: An Oject of class test has the ID "1.3.5") No I want to get special parts of the ID but not the whole one. Has someone an idea how i can manage this? (I want to use this, so i won't have to send 3 different ints)

String partID = (testActor.getID().split("."))[0];

will set partID to "3" if the ID was "3.1.5". Change the index (0) to 1 or 2 for the other parts. As an alternattive, you can add a method to the test class or a class it is extended from:

public String getIdPart(int partNum)
{
    return (id.split("."))[partNum];
}

and get a part by using:

String partID = testActor.getIdPart(0);

Proprogrammer04

2019/2/21

#

Thank you very much, I think that will solve the Problem ;-)

Proprogrammer04

2019/2/21

#

There's only one Thing, I don't understand… At

String partID = (testActor.getID().split("."));

, what is getID() for? Is it an function or method in the oter class?

danpost

2019/2/21

#

Proprogrammer04 wrote...

There's only one Thing, I don't understand… At

String partID = (testActor.getID().split("."))[0];

, what is getID() for? Is it an function or method in the oter class?

You said you only wanted a part of the id instead of the whole thing. I guess I presumed you had a getter method in the test class that returned the whole thing, like this:

public String getID()
{
    return id;
}

Proprogrammer04

2019/2/22

#

Yes, i said that, thank you ;-)

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