CODEWITHSUNDEEP
javaandroid
user2475395
user2475395

Reputation:

Get the value inside 2D ArrayList in android?

I have a 2D array like ...

ArrayList<ArrayList<MParsingClass>> 2d_arraylist = new ArrayList<ArrayList<MParsingClass>>();

I want to get all the Value of the internal Object class like the value of position ... 

2d_arraylist [0][1] and gradually so on.....

Any Help Please ??

Upvotes: 0

Views: 1193

Answers (3)

iTurki
iTurki

Reputation: 16398

This should work:

for(i=0; i<2d_arraylist.size(); i++) {
    ArrayList<MParsingClass> temp = 2d_arraylist.get(i);
    for(j=0; j<temp.size(); j++) {
        MParsingClass obj = temp.get(j);
        //To-Do .....
    }
}

Upvotes: 0

Hunter McMillen
Hunter McMillen

Reputation: 61520

That would work if you were dealing with nested arrays, but you are dealing with nested ArrayLists you have to use ArrayList class methods to access its data, namely the get() method.

You need to use:

2d_arraylist.get(0).get(1);

get(0) gets the first row from your array of arrays (an ArrayList)

get(1) gets the second column from the row you have selected (an MParsingClass)

Upvotes: 2

NRahman
NRahman

Reputation: 2757

You Have to make a 2 for loop like this ...

for(int i=o ; i< size of 2d array ;i++)

// here you have to make another ArrayList which will get the positon of the "i th" //array of your 2D array..

ArrayList<MParsingClass> new_array_list = 2d_arraylist .get(position);

for(int j=o ; i<size of  new_array_list ;i++)

new_array_list.get(your get value)


{

}

Upvotes: 0

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