up vote 0 down vote favorite

How can I convert values here:

List<String> values = new ArrayList<String>

to :

ArrayList<Custom>

EDIT:

public class Custom {


    public Custom Parse(String input) {
        // What should I do here?
    }
}
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67% accept rate
3  
How do you convert from String to Custom? – Alex Sep 20 at 12:05
Can you tell me if I can do some parsing in my Custom class? – devel Sep 20 at 12:06
1  
refresh your question, and put clear question – Samir Mangroliya Sep 20 at 12:06
what about your custom class and your string data ? – user1645941 Sep 20 at 12:06
1  
Show us your Custom class. – Alex Sep 20 at 12:07
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3 Answers

up vote 4 down vote accepted

You could use:

List<Custom> customList = new ArrayList<Custom>();
for (String value: values) {
   customList.add(new Custom(value));
}

Although it would be better just to add a constructor with a String argument:

class Custom {
   private final String input;

   public Custom(String input) {
      this.input = input;
   }

   // not needed but implemented for completeness    
   public static Custom parse(String input) {
      return new Custom(input);
   }
}
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up vote 0 down vote

Assuming your list of Custom objects has the same size with values list. With one enhanced for-loop, set the appropriate fields of your objects like this:

int i=0;

for(String str:values)
   customList.get(i++).setSomeProperty(str);
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up vote 0 down vote

you can find a solution using Google Collections libraries on this thread Converting a List<String> to a List<Integer> (or any class that extends Number)

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