Program to search a given integer in an array of integers

/* Program to search a given integer in an array of integers*/

import java.io.DataInputStream;   // to load DataInputStream class          

class P2
{
    public static void main(String args[ ])
    {
        int arr[]= new int[20];
        int num=0, i, subscript;
        DataInputStream in = new DataInputStream(System.in);
       
        try
        {
            System.out.println("  Input 5 array elements : ");
            for(i=0;i<5;i++)
                     arr[i] = Integer.parseInt(in.readLine());
            System.out.print(" Enter number to be searched : ");
            num= Integer.parseInt(in.readLine());
        }
        catch(Exception e) {  System.out.println("I/O Error");   }

        if((subscript = search(arr,num)) == -1)
                 System.out.println(" No such element !! ");
        else
                 System.out.println(" Element found at : "+subscript);       
    }

    static int search(int arr[], int num)
    {
             int i ;
                 for(i=0; i<5; i++)              
                   if (arr[i] == num)
                           return (i+1);
                 return -1;
         }

}