Java-Essentials/ReversingArray.java at master · Sayantan7D/Java-Essentials · GitHub

43 lines (31 loc) · 1.04 KB

import java.util.Arrays;

import java.util.Scanner;

public class ReversingArray {

private static Scanner sc = new Scanner(System.in);

public static int[] getdata(int capacity){

int[] array = new int[capacity];

System.out.println("\nEnter "+capacity+" elements - \n");

for(int i=0;i<capacity;i++){

array[i]=sc.nextInt();

}

return array;

}

public static void reverse(int[] arr){

int maxindex=(arr.length)-1;

int halfway=(arr.length)/2;

for(int i=0;i<halfway;i++){

int temp=arr[i];

arr[i]=arr[maxindex-i];

arr[maxindex-i]=temp;

}

public static void main(String[] args) {

System.out.println("\nEnter the total number of elements in the array - ");

int n = sc.nextInt();

int[] arr = new int[n];

arr=getdata(n);

System.out.println("\nInput Array - "+ Arrays.toString(arr));

reverse(arr);

System.out.println("\nReversed Array - "+Arrays.toString(arr));

}

Expand file tree