Java ArrayList.toArray() Method

public Object[] toArray()

The toArray() method is used to get an array which contains all the elements in ArrayList object in proper sequence (from first to last element).

Package: java.util

Java Platform: Java SE 8

Syntax:

Object[] toArray()

Return Value:
An array containing the elements of an ArrayList object in proper sequence

Pictorial presentation of ArrayList.toArray() Method

Example : ArrayList.toArray Method

The following example converts an ArrayList into an array and displays the contents of the array.

import java.util.*;

public class test {
   public static void main(String[] args) {
      
    // create an empty array list with an initial capacity
    ArrayList<String> color_list = new ArrayList<String>(5);

    // use add() method to add values in the list
    color_list.add("White");
    color_list.add("Black");
    color_list.add("Red");
    color_list.add("White");
 	color_list.add("Yellow");
	
    System.out.println("Size of list: " + color_list.size());

    // Print the colors in the list
    for (String value : color_list) {
      System.out.println("Color = " + value);
    }  
  // Create an array from the ArrayList
   Object[] obj = color_list.toArray();

  // Display the contents of the array
    System.out.println("Printing elements from first to last:"); 
    for (Object value : obj) {
      System.out.println("Color = " + value);
    }
  }
} 
  

Output:

Sample Output:

F:\java>javac test.java
F:\java>java test
Size of list: 5
Color = White
Color = Black
Color = Red
Color = White
Color = Yellow
Printing elements from first to last:
Color = White
Color = Black
Color = Red
Color = White
Color = Yellow

Java Code Editor:

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