string to arraylist in java code example

Example 1: arraylist string to string array

String[] arr = list.toArray(new String[list.size()]);

Example 2: string array to arraylist

String [] strings = new String [] {"1", "2" };
List<String> stringList = new ArrayList<String>(Arrays.asList(strings)); //new ArrayList is only needed if you absolutely need an ArrayList

Example 3: java string array to arraylist

new ArrayList( Arrays.asList( new String[]{"abc", "def"} ) );

Example 4: convert string to arraylist

import java.util.ArrayList;
import java.util.List;
import java.util.Arrays;
public class JavaExample {
    public static void main(String args[]){
	String num = "22,33,44,55,66,77";
	String str[] = num.split(",");
	List<String> al = new ArrayList<String>();
	al = Arrays.asList(str);
	for(String s: al){
	   System.out.println(s);
	}
   }
}

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Python Example

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