java与c++局部变量的小小区别

java的局部变量不像c+=那样可以被隐藏

例如：java

public class A{

     int a=15；

{   int a=12；}

}

这样定义会显示重复定义；

c++

class A{

int  a=15;

{int a=12；}

}；

在c++中这这样不会被认为是重复定义····················································································································································································································································································································································································································