ArrayIndexOutOfBoundsexception

SecLargest.java

package Array_Pragrom;

import java.util.Scanner;

public class SecLargest {
    public static int geLargest(int arr[] , int num)
    {
        int temp = 0;
        for(int i =0; i<arr.length ; i++)
        {
            for (int j = i+1; j < arr.length ; j++) {
                if(arr[i]>arr[j]) {
                    temp = arr[i];
                    arr[i] = arr[j];
                    arr[j] = temp;
                }

            }
        }
        return arr[num-2];
    }
    
    public static void main(String[] args) {
        int num =0;
        int[] arr = new int[num];
        Scanner obj = new Scanner(System.in);
        num = obj.nextInt();

        for (int i = 0; i <= num; i++) {
            arr[i] = obj.nextInt();
        }

        System.out.println(geLargest(arr,num));
    }

}