class Generics<T>  //T is a user defined data type
{
  T data;   //syntax: datatype variable_name 
  Generics (T a){
     this.data=a;  //this keyword use for data is Generics class attribute 
  }
  /*Here T uses, this method return user T type data. 
  Here user can pass any types of any perameter like integer,string,float.
  */
  public T getData(){  //method syntax: access_modifier return_type name()
      return this.data;
  }
}
 
public class Main
{
	public static void main(String[] args) {
 // syntax class_name<data_type> object_name= new class_name(perameter)
		Generics <Integer> obj1= new Generics(15);
		System.out.println(obj1.getData());
 
		Generics <String> obj2= new Generics("Shakib");
		System.out.println(obj2.getData());
	}
}

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