Get/Replace element by index

E get(int index)
Returns the element at the specified position in this list.
E set(int index, E element)
Replaces the element at the specified position in this list with the specified element.

import java.util.ArrayList;

public class Main {
  public static void main(String args[]) {
    ArrayList<String> al = new ArrayList<String>();

    al.add("C");
    al.add("java2s.com");
    al.add("D");
    al.add("F");
    al.add(1, "java2s.com");

    System.out.println(al);
    System.out.println(al.get(1));

  }

}

The output: 


[C, java2s.com, java2s.com, D, F]
java2s.com


import java.util.ArrayList;

public class Main {
  public static void main(String args[]) {
    ArrayList<String> al = new ArrayList<String>();

    al.add("C");
    al.add("java2s.com");
    al.add("D");
    al.add("F");
    al.add(1, "java2s.com");

    System.out.println(al);
    System.out.println(al.set(1,"new java2s.com"));
    System.out.println(al);

  }

}

The output: 


[C, java2s.com, java2s.com, D, F]
java2s.com
[C, new java2s.com, java2s.com, D, F]
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ArrayList:
  1. ArrayList Class
  2. Create ArrayList object
  3. Add to ArrayList
  4. Clear an ArrayList
  5. Shallow copy of current ArrayList
  6. If contain a certain object
  7. Increases the capacity of an ArrayList
  8. Get/Replace element by index
  9. Get object for index
  10. Remove from ArrayList
  11. Get the size and trim to size
  12. If ArrayList is empty
  13. Convert ArrayList to array