Program to expain Generic class with Two type parameters in Java

// Program to expain Generic class with Two type parameters.
class  TwoGen<T, V> 
{
T ob1;
V ob2;
TwoGen(T o1, V o2) 
{
 ob1 = o1;
 ob2 = o2;
}
void showTypes() 
{
 System.out.println("Type of T is " + ob1.getClass().getName());
 System.out.println("Type of V is " + ob2.getClass().getName());
}
T getob1() 
{
 return ob1;
}
V getob2() 
{
 return ob2;
}
}
public class  GenericTest2  
{
public static void main(String args[ ]) 
{
 TwoGen<Integer, String> tgObj = new TwoGen<Integer, String>(100, "Nils");
 tgObj.showTypes();
 int v = tgObj.getob1();
 System.out.println("Value: " + v);
 String str = tgObj.getob2();
 System.out.println("Value: " + str);
 
 TwoGen<String, Double> tgObj1 = new TwoGen<String, Double>("Techsys", 123.45);
 tgObj1.showTypes();
 String s1 = tgObj1.getob1();
 System.out.println("Value: " + s1);
 double d = tgObj1.getob2();
 System.out.println("Value: " + d);
}
}

Output:
Type of T is java.lang.Integer
Type of T is java.lang.String
Value: 100
Value: Nils
Type of T is java.lang.String
Type of T is java.lang.Double
Value: Techsys
Value: 123.45