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Java Array Exercises: Convert an array to ArrayList

Java Array: Exercise-20 with Solution

Write a Java program to convert an array to ArrayList.

Pictorial Presentation:

Java Array Exercises:  Convert an array to ArrayList

Sample Solution:

Java Code :

import java.util.ArrayList;
  import java.util.Arrays;
public class Exercise20 {
  public static void  main(String[] args) 
  {
  String[]  my_array = new String[] {"Python", "JAVA", "PHP",  "Perl", "C#", "C++"};
  ArrayList<String>  list = new ArrayList<String>(Arrays.asList(my_array));
  
  System.out.println(list);
  }
}

Sample Output:

[Python, JAVA, PHP, Perl, C#, C++] 

Flowchart:

Flowchart: Java exercises: Convert an array to ArrayList

Visualize Java code execution (Python Tutor):


Java Code Editor:

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Next: Write a Java program to convert an ArrayList to an array.

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Java: Tips of the Day

How to sort an ArrayList?

Collections.sort(testList);
Collections.reverse(testList);

That will do what you want. Remember to import Collections though!

Ref: https://bit.ly/32urdSe