Array of inner class objects inside a teplated class

Question

Based on what I read here StackOverFlow array from a class..., I expected the following code to compile. I get an error, "<identifier> expected". I get the same result with Array.newInstance. What am I doing wrong?

import java.lang.reflect.Array;
public class Outer<E> {
    private Inner[] array;
    
    public Outer() {
        @SuppressWarnings("unchecked")
        array = (Inner[])new Outer<?>.Inner[10];
        //array = (Inner[])Array.newInstance(Inner.class, 10);
    }
    
    public class Inner {
        E data;
    }
}

score 0 · Answer 1 · answered Sep 24 '20 at 04:29

import java.lang.reflect.Array;
class Outer<E> {
    private Inner[] array;
    @SuppressWarnings("unchecked")
    public Outer() {
        array = (Inner[])new Outer<?>.Inner[10];
        //array = (Inner[])Array.newInstance(Inner.class, 10);
    }
    
    
    public class Inner {
        E data;
    }
}

Suppress warnings outside of the constructor

Array of inner class objects inside a teplated class

1 Answers1