ARRAY GFG 1

 package com.company;

import java.util.ArrayList;
import java.util.Arrays;

public class Array {
    //    Deleting an element and returning the size of that array
    public static int deletion(int[] arr, int n, int element) {
        int i;
        for (i = 0; i < n; i++) {
            if (arr[i] == element) {
                break;
            }
        }
        if (i == n) {
            return n;
        }

        for (int j = i; j < n-1; j++) {
            arr[j] = arr[j + 1];
        }
        return n-1;
    }
    //    Deletion of an element in an array

    public static int[] delete(int[] arr, int lastIndex, int index) {
        if (lastIndex == index) {
            arr[index] = 0;
            return arr;
        }
        for (int i = index; i < lastIndex; i++) {
            arr[i] = arr[i + 1];
            arr[lastIndex] = 0;
        }
        return arr;
    }

    //    Inserting an element at a position in an array without overwriting
    public static int[] insert(int[] arr, int position, int n, int lastIndex) {

        if (lastIndex == arr.length - 1) {
            System.out.println("Array is full pagal!");
            return arr;
        }
        int ind = position - 1;
        for (int i = arr.length - 1; i >= ind; i--) {
            arr[i] = arr[i - 1];
            if (i == ind) {
                arr[ind] = n;
            }
        }
        return arr;
    }
//Searching and element and returning the first index of that element

    public static int searching(int[] arr, int n) {

        for (int i = 0; i < arr.length; i++) {
            if (arr[i] == n) {
                return i;
            }
        }
        return -1;
    }

    public static void main(String[] args) {
        /*
// Creating an array list
        ArrayList<Integer> numbers = new ArrayList<>();
        numbers.add(89);
        numbers.add(34);
        numbers.add(22);
        System.out.println(numbers);

//        Searching
        int[] arr = {1, 2, 5, 4, 5};
        System.out.println(searching(arr, 58));

         */

//        Inserting in an array
        int[] ar = new int[7];
        ar[0] = 5;
        ar[1] = 10;
        ar[2] = 260;
        ar[3] = 10;
        ar[4] = 206;
        ar[5] = 520;
        ar[6] = 620;
//        ar[1] = 7;
        System.out.println(deletion(ar, 7, 620));


    }
}