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androidc++vectorstructure
George Melidis
George Melidis

Reputation: 609

How to implement a C++ vector in Android?

I'm working in Android with opencv library. I found some code in c++ for image processing which contains the following line:

    vector<pair<CvPoint, pair<double, double> > > hlines;

How can I create a structure like this in android in order to save a point and two doubles?

Upvotes: 0

Views: 222

Answers (2)

C. K. Young
C. K. Young

Reputation: 223153

Java doesn't have pairs; Java programmers tend to write their own class for that kind of thing. e.g.,

class HLine {
    public final CvPoint point;
    public final double x;
    public final double y;

    public HLine(CvPoint point, double x, double y) {
        this.point = point;
        this.x = x;
        this.y = y;
    }
}

Then you can just create an ArrayList<HLine>.

Upvotes: 3

Ankit Srivastava
Ankit Srivastava

Reputation: 280

you should have a look at Arraylist...... it is also a array but you don't have to define the size of it... syntax : 

ArrayList<datatype> variable_name=new ArrayList<datatype>();

Upvotes: 0

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