Convert String ArrayList into ArrayList of own defined objects

Question

Can someone guide me how to convert ArrayList<String> to ArrayList<Object> ??

Object is a class written by me with some getters and setters..

Never ever name an own class Object, even though it is legal Java code. — Andreas Dolk
– Andreas Dolk, Commented Jan 24, 2011 at 8:19

Jigar Joshi · Accepted Answer · 2011-01-24 08:44:11Z

1

List<Object> lstObj = new ArrayList<Object>();
for(String str: strList){
  if(str==null)
     lstObj.add(null);
  }else{
     lstObj.add((Object)(str));
  }
}

edited Jan 24, 2011 at 8:44

answered Jan 24, 2011 at 8:14

Jigar Joshi

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6 Comments

The Scrum Meister Over a year ago

I think he means a custom Object. not java.lang.Object

Péter Török Over a year ago

@The, ArrayList<Object> is mentioned explicitly in the OP.

The Scrum Meister Over a year ago

@peter i didn't believe it either, however it does say in the question Object is a class written by me..

Andreas Dolk Over a year ago

@The Scrum Meister - I think org.life.java noticed that (and quickly invented the custom constructor :-) )

Andreas Dolk Over a year ago

@org.life.java - Jigar Joshi - no, no, revert your last change! The copy constructor was the best answer at all!!! As long as this Object is really a custom class or a "placeholder" name for any other class.

|

Danny Thomas · Accepted Answer · 2011-01-24 08:57:53Z

0

Have a constructor in your object that takes a string:

List<MyObject> myObjectList = new ArrayList<MyObject>();
for ( String str : stringList )
{
  myObjectList.add( new MyObject( str ) );
}

answered Jan 24, 2011 at 8:57

Danny Thomas

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