?class ? ?Outer{ int ?x=3; void ? method(final ? int ?a) { final ?int ? y=4; class ? Inner { void ? function() { System.out.println(a); } }new ? Inner().function(); }}?class InnerClassDemo3 { public ?static ?void ?main(String[] ? args) { Outer ? out=new ? Outer(); Out.method(7); out.method(8); }}報錯信息顯示Outer ? out=new ? Outer();找不到符號：變量out位置:類InnerClassDemo31個錯誤