ArrayList To String In Java Example

Chapter: String Handling Last Updated: 06-07-2016 06:48:23 UTC

Program:

            /* ............... START ............... */
                
public class JavaArrayListToStringArray {
	public static void main(String args[]) {

		ArrayList<String> aListDays = new ArrayList<String>();
		aListDays.add("Sunday");
		aListDays.add("Monday");
		aListDays.add("Tuesday");

		/*
		 * To convert ArrayList containing String elements to String array, use
		 * Object[] toArray() method of ArrayList class.
		 */

		// First Step: convert ArrayList to an Object array.
		Object[] objDays = aListDays.toArray();

		// Second Step: convert Object array to String array
		String[] strDays = Arrays.copyOf(objDays, objDays.length, String[].class);

		// print elements of String array
		for (int i = 0; i < strDays.length; i++) {
			System.out.println(strDays[i]);
		}
	}
}
                /* ............... END ............... */
        

Output

Sunday
Monday
Tuesday

Notes:

  • This Java ArrayList to String Array example shows how to convert ArrayList to String array in Java.
  • Arrays.copyOf does not only copy elements, it also creates a new array. System.arrayCopy copies into an existing array.

Tags

ArrayList to String, Java

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