posted 11 years ago
how to group the data in numeric format in an array I thank you in advance
Set<coordinates> group = new LinkedHashSet<coordinates>();
//group id = 1 . id x y
group.add(new coordinates(1, 50, 20));
group.add(new coordinates(1, 70, 30));
group.add(new coordinates(1, 50, 40));
//group id = 2
group.add(new coordinates(2, 100, 20));
group.add(new coordinates(2, 130, 30));
group.add(new coordinates(2, 140, 40));
group.add(new coordinates(2, 140, 40));
//the result should be the following
group id = 1 x={50,70,50}; y={20,30.40};
group id = 2 x={100,130,140,140}; y={20,30,40,40};