Create a class with a generic type
T
. A subclass of the class that defines a second type parameter, calledV
. Call the methods from both classes using the object. Create 2 objects with different objects
This is the question.
This is not homework if anyone might think. I am doing some java papers for practice. I don't understand how to "create 2 objects with different objects". Can anyone help?
class Gen<T>
{
T obj;
Gen(T ob)
{
obj = ob;
}
T getobj()
{
return obj;
}
}
class Gen2<T, V> extends Gen<T>
{
V obj1;
Gen2(T ob,V ob1)
{
super(ob);
obj1 = ob1;
}
V getobj1()
{
return obj1;
}
}
public class Ch2Lu4Ex3
{
public static void main(String args[])
{
Gen2<String,String> g = new Gen2<String,String>("robin","raj");
System.out.println(g.getobj1());
System.out.println(g.getobj());
}
}
The last part of the question:
Create 2 objects with different objects
Gen2<Integer,String> inst = new Gen2<Integer,String>(1, "robin");
Well, you could do things like:
Gen<Integer> gen1 = new Gen<Integer>(10);
Gen2<Integer> gen2 = new Gen2<Integer,String>(10,"Hello");
Or you could combine them since they are on the same hierarchy.
Gen<Integer> gen1 = new Gen2<Integer,String>(10,"Hello");
Are you asking for something like:
Gen2<String,String> g = new Gen2<String,String>("robin","raj");
Gen2<Integer,Integer> h = new Gen2<Integer,Integer>(1, 2);
Or am I misunderstanding your question?
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.