Get/Replace element by index

ReturnMethodSummary
Eget(int index)Returns the element at the specified position in this list.
Eset(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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