Data-Structures-Java/Arrays/Reverse.java at main · muskanmi/Data-Structures-Java

26 lines (25 loc) · 659 Bytes

package Arrays;

public class Reverse {

void reverse(int arr[]) {

// for(int i=arr.length-1; i>=0; i--) {

// System.out.print(arr[i] + " ");

// }

// OR

int low =0, high=arr.length-1;

while(low < high) {

int temp = arr[low];

arr[low] = arr[high];

arr[high] = temp;

low++;

high--;

}

for(int i=0; i<arr.length; i++) {

System.out.print(arr[i] + " ");

}

public static void main(String[] args) {

Reverse obj = new Reverse();

int arr[] = {10, 5, 7, 30};

obj.reverse(arr);

}

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