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Remove an element from specified index of Java ArrayList Example

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  1. /*
  2.   Remove an element from specified index of Java ArrayList Example
  3.   This Java Example shows how to remove an element at specified index of java
  4.   ArrayList object using remove method.
  5. */
  6.  
  7. import java.util.ArrayList;
  8.  
  9. public class RemoveElementFromArrayListExample {
  10.  
  11.   public static void main(String[] args) {
  12.     //create an ArrayList object
  13.     ArrayList arrayList = new ArrayList();
  14.    
  15.     //Add elements to Arraylist
  16.     arrayList.add("1");
  17.     arrayList.add("2");
  18.     arrayList.add("3");
  19.    
  20.     /*
  21.       To remove an element from the specified index of ArrayList use
  22.       Object remove(int index) method.
  23.       It returns the element that was removed from the ArrayList.
  24.     */
  25.     Object obj = arrayList.remove(1);
  26.     System.out.println(obj + " is removed from ArrayList");
  27.    
  28.     System.out.println("ArrayList contains...");
  29.     //display elements of ArrayList
  30.     for(int index=0; index < arrayList.size(); index++)
  31.       System.out.println(arrayList.get(index));
  32.    
  33.   }
  34. }
  35.  
  36. /*
  37. Output would be
  38. 2 is removed from ArrayList
  39. ArrayList contains...
  40. 1
  41. 3
  42. */