Tostring method in java

//programme for how to use the toString method in java class
//in this we use directly use public string tostring method or we can use object string and integer
class hostel
{
    String name;
    int no;

    hostel(String a,int b)
    {
        this.name=a;
        this.no=b;
    }

   public String toString()
    {
        return "your name is this "+name+" your roll number is this "+no;
    }


}

public class Tostri {

    public static void main(String[] args)
    {

        hostel obj1= new hostel("vaghela Ajitkumar",45);

        System.out.println(obj1);
        
        //when we don't specify the string method its gives output like
//        its output like com.company.hostel@65ab7765
        
//        after the specify the method its gives correct output
        System.out.println(obj1);
        //or
//       System.out.println(obj1.toString());
       
       //wrapper class through
        String s1= new String("suffer is good but there is one confaction from my side");

        System.out.println(s1);

     Integer k1 =new Integer(13);
//
        System.out.println(k1);
    }
}