Remove an Element at specific index from an Array in Java

Remove an Element at a specific index from an Array in Java

• We can remove a specific element from an array using index by using for loop, streams, etc.,.

Program for a Remove an Element at specific index from an Array in Java:

import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

public class removeNumber {

  public static void main(String[] args) {
  int[] arr = { 1, 2, 3, 4, 5 };

  int index = 1;

  int[] b = new int[arr.length - 1];

  for (int i = 0, k = 0; i < arr.length; i++) {
      if (i != index) {
        b[k++] = arr[i];
      }
  }
  for (int n : b) {
    System.out.print(n + " ");
  }

  System.out.println("\n<<------------------------------------>>");
  int[] streamArr = { 5, 4, 3, 2, 1 };

  int[] str = IntStream.range(0, streamArr.length).filter(i -> i != index).map(i -> streamArr[i]).toArray();
  
  for (int n : str) {
    System.out.print(n + " ");
  }
  System.out.println("\n<<------------------------------------>>");

  int[] listArr = { 5, 4, 3, 2, 1, 6 };
  List<Integer> arrayList = IntStream.of(listArr).boxed().collect(Collectors.toList());

  arrayList.remove(index);
  System.out.print(arrayList);
 }
}

Output:

Remove element from array using index

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