java program of Wrapper class.

class WrapperClass{
    private  Object  object;
        public void add(Object object) {
            this.object = object;
        }
        public Object get() {
            return object;
        }
    }

class Demo {
    public static void main(String[] args) {
       WrapperClass integer= new GenericClass();
        integer.add(new Integer(10));
        Integer someInteger = (Integer)integer.get();
        System.out.println(someInteger);

  /*GenericClass str=new GenericClass();
    str.add("10");
    someInteger=(Integer)str.get();//String can not be cast with
integer at run time.*/
    }
}