Program to explain Simple Generic class in Java

// Program to explain Simple Generic class.
class   A<T> 
{
T ob;
A(T o) 
{
 ob = o;
}
T getob() 
{
 return ob;
}
void showType() 
{
 System.out.println("Type of T is " + ob.getClass().getName());
}
}
public class  GenericTest1
{
public static void main(String args[ ]) 
{
 A<Integer> iOb = new A<Integer>(100);
 iOb.showType();
 int v = iOb.getob();
 System.out.println("Value: " + v);
 System.out.println();
 A<String> strOb = new A<String>("Nils");
 strOb.showType();
 String str = strOb.getob();
 System.out.println("Value: " + str);
}
}

Output:
Type of T is java.lang.Integer
Value: 100
Type of T is java.lang.String
Value: Nils