CODEWITHSUNDEEP
javalistobject
Anton A.
Anton A.

Reputation: 1758

Get value from List<ListObject>

I am interestig in how to get value from Object from List<>. Here is code example with Objects

@Override
public List<ListObject> initChildren() {

    //Init the list
    List<ListObject> mObjects = new ArrayList<ListObject>();

    //Add an object to the list
    StockObject s1 = new StockObject(this);
    s1.code = "Системне програмування-1";
    s1.num = "1.";
    s1.value = "307/18";
    s1.time = "8:30 - 10:05";
    mObjects.add(s1);

    StockObject s2 = new StockObject(this);
    s2.code = "Комп'ютерна електроніка";
    s2.num = "2.";
    s2.value = "305/18";
    s2.time = "10:25 - 11:00";
    mObjects.add(s2);

    StockObject s3 = new StockObject(this);
    s3.code = "Психологія";
    s3.num = "3.";
    s3.value = "201/20";
    s3.time = "11:20 - 13:55";
    mObjects.add(s3);

    StockObject s4 = new StockObject(this);
    s4.code = "Проектування програмного забезпечення";
    s4.num = "4.";
    s4.value = "24";
    s4.time = "14:15 - 16:50";
    mObjects.add(s4);

    return mObjects;
}

Upvotes: 0

Views: 107

Answers (3)

Jp Vinjamoori
Jp Vinjamoori

Reputation: 1271

You can iterate over the collection and type cast to the data type you know its in there.

    List<ListObject> listOfObjects = initChildren();

    for (Iterator iterator = listOfObjects.iterator(); iterator.hasNext();) {
        StockObject so = (StockObject) iterator.next();
        // do whatever you want with your StockObject (so)
        System.out.println("Code:" + so.code);
    }

You can use for each syntax as well like following

    List<ListObject> listOfObjects = initChildren();

    for (ListObject listObject : listOfObjects) {
        StockObject so = (StockObject) listObject;
        // do whatever you want with your StockObject (so)
        System.out.println("Code:" + so.code);
    }

Upvotes: 0

Karibasappa G C
Karibasappa G C

Reputation: 2732

you use like below

List<ListObject> mObjects = new ArrayList<ListObject>();

.......................your program...........

//access using enhanced for loop

for(ListObject myObj : mObjects){

System.out.println(myObj.code);

System.out.println(myObj.num);

System.out.println(myObj.value);

}

//access using index

int index=0;
 System.out.println(mObjects.get(index).code);

Upvotes: 0

akshay7692
akshay7692

Reputation: 601

You can use get() method like follows

mObjects.get(index)

where index is the zero based index of your List, just like an array. To directly access object, you do for example, 

mObjects.get(index).code

Upvotes: 1

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