It is an array where elements are stored in a pendulum pattern.

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• PENDULUM ARRAY:
import java.io.*;
class pendulumArray{
 public static void main()throws IOException{
 BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
 System.out.println("Enter size of array");
 int size=Integer.parseInt(br.readLine());
 int arr[]=new int[size];
 int end=size-1;
 int front=0;
 System.out.println("Enter the elements");
 for(int i=0;i<size;i++){
 if(i%2==0){
 arr[end]=Integer.parseInt(br.readLine());
 end--;
 }
 else{
 arr[front]=Integer.parseInt(br.readLine());
 front++;
 }
 }
 for(int i=0;i<size;i++){
 System.out.print(arr[i]+"\t");
 }
 }
}
INPUT: Enter size of array 5
 Enter the elements 1 2 3 4 5
OUTPUT: 2 4 5 3 1

INPUT: Enter size of array 5
Enter the elements 1 2 3 4 5
OUTPUT: 2 4 5 3 1

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