如何计算相同的 json object 值并添加到回收视图中？

Question

I have a JSON data and I want to a count two the same JSON object value, but I don't know how to add it

{
    "data": [
        {
            "ID": 1,
            "country": "Indonesia",
            "city": "Jakarta",
        },
        {
            "ID": 2,
            "country": "Indonesia",
            "city": "Jakarta",
        },
        {
            "ID": 3,
            "country": "Indonesia",
            "city": "Medan",
        },
        {
            "ID": 4,
            "country": "USA",
            "city": "New york",
        },

Output like: -

Answer 1

Your question is wrong because your objects are not actually same, the value of id is different in both the objects, so it makes it different, you can check your values and compare them on that values, so in your case, you can do something like this -> obj1.country.equalsTo(obj2.cpuntry) && obj1.city.equalsTo(obj2.city) and mark it as same