Check out example codes for "remove elemnt from array java". It will help you in understanding the concepts better.

Code Example 1

public int[] removeAnElementWithAGivenIndex(int[] array, int index) {
      return ArrayUtils.remove(array, index);
}

Code Example 2

import java.util.Scanner;

public class ElemRemoval {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int[] intArr = {1, 2, 5, 12, 7, 3, 8};
        System.out.print("Enter Element to be deleted : ");
        int elem = in.nextInt();
        
        for(int i = 0; i < intArr.length; i++){
            if(intArr[i] == elem){
                // shifting elements
                for(int j = i; j < intArr.length - 1; j++){
                    intArr[j] = intArr[j+1];
                }
                break;
            }
        }
      
        System.out.println("Elements -- " );
        for(int i = 0; i < intArr.length - 1; i++){
            System.out.print(" " + intArr[i]);
        }                
    }
}

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