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Java

Posted by Matthew Francis
Matthew Francis
6,967 Points

Generic Syntax Problem - class does not take any parameters

Hi! I recently encountered a small problem in this code, not sure what's wrong, but perhaps you guys could answer it.

interface interfaceOne<M>{
    public void methodOne(M insert); 
}

interface interfaceTwo<K>{
    public void methodTwo();
}

public class HelloWorld implements interfaceOne<String>{
    String stringVar = "Hello";
    public void methodOne(String stringVar){}


     public static void main(String []args){
        System.out.println("Hello World");
        interfaceOne<String> newObj = new HelloWorld<String>();
     }
}

1 Answer

Seth Kroger
Seth Kroger
56,416 Points

The class itself isn't generic. You've already specified the type for the generic interface when you declared the class. Because of this, you don't need to use the angle brackets on new HelloWorld<String>(); Just new HelloWorld();