asked on

how can i assign one arraylist to another

if(breakBulkHouseModel.getChargesList()!=null)
{
breakBulkHouseModel.getChargesList().addAll(breakBulkHouseModel.getViewChargesList());

}
else
              {
              }

how can i assign one arraylist to another if breakBulkHouseModel.getChargesList() is null
like breakBulkHouseModel.getChargesList() =breakBulkHouseModel.getViewChargesList();

after that i will do like this

if(breakBulkHouseModel.getChargesList() != null)
{
for(int j=0;j<breakBulkHouseModel.getChargesList().size();j++)
{
                                                ...........................
            }

            }

CEHJ

You can either assign or copy (of which you gave an example). What is the difficulty?

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CEHJ

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chaitu chaitu

ASKER

in some cases breakBulkHouseModel.getChargesList() will come null then i want to assign breakBulkHouseModel.getChargesList() to breakBulkHouseModel.getViewChargesList() ;

in my application i am doing

breakBulkHouseModel.getChargesList().addAll(breakBulkHouseModel.getViewChargesList());

if breakBulkHouseModel.getChargesList() will come null i am getting nullpointer exception;

at that time i want assign

tChargesList() =ViewChargesList();

chaitu chaitu

ASKER

if(breakBulkHouseModel.getChargesList()!=null)
{
for(Iterator k=breakBulkHouseModel.getChargesList().iterator();k.hasNext();)
{
HouseDocumentCharges      viewCharges      =      (HouseDocumentCharges)k.next();
if(breakBulkHouseModel.getViewChargesList()!=null)
{
for(Iterator j=breakBulkHouseModel.getViewChargesList().iterator();j.hasNext();)
{
HouseDocumentCharges      charges      =      (HouseDocumentCharges)j.next();
if(charges.chargeId.equals(viewCharges.chargeId) || !charges.chargeId.equals("045"))
{
j.remove();
continue;
}

}
}
}
if(breakBulkHouseModel.getChargesList() != null && breakBulkHouseModel.getViewChargesList() != null)
breakBulkHouseModel.getChargesList().addAll(breakBulkHouseModel.getViewChargesList());

}
else
breakBulkHouseModel.getChargesList().addAll(breakBulkHouseModel.getViewChargesList());

              if i am doing like this i am getting nullpointer exception because breakBulkHouseModel.getChargesList() comes nulll

              at that time i want to assign

breakBulkHouseModel.getChargesList() =breakBulkHouseModel.getViewChargesList();

if(breakBulkHouseModel.getChargesList() != null)
{
for(int j=0;j<breakBulkHouseModel.getChargesList().size();j++)
{
houseDocumentCharges =(HouseDocumentCharges)breakBulkHouseModel.getChargesList().get(j);

}

              }

CEHJ

See my code above. You could also simply assign getViewChargesList to 'cl' in the else block if you want

CEHJ

:-)

Actually you can do just

cl = new ArrayList(breakBulkHouseModel.getViewChargesList());