contoh coding buffered pada java

public class hitungan {
    public static void main(String[]args){
    int n1,n2;
    /*InputStreamReader isi=new InputStreamReader(System.in);
    BufferedReader x=new BufferedReader(isi);*/
   
    BufferedReader isi=new BufferedReader(new InputStreamReader(System.in));
    try{
       System.out.print("Masukkan Nilai 1 :");
       n1=Integer.parseInt(isi.readLine());
       System.out.print("Masukkan Nilai 2:");
       n2=Integer.parseInt(isi.readLine());
       System.out.println("Hasil jumlah:"+(n1+n2));
      
    }
    catch(Exception ex){
    System.out.println("Maaf...anda harus mengisi angka");   
    }
    }
}