paramless ctor struct | C# Online Compiler

paramless ctor struct by GuRuStron

using System;

Console.WriteLine(new V().j);

struct V
{
    public int j = 8;
}

​x
 
using System;
​
Console.WriteLine(new V().j);
​
struct V
{
    public int j = 8;
}

Compilation error (line 18, col 25): ; expected
Compilation error (line 18, col 25): Invalid expression term '||'