What is the scope of Java variables in the block?

See English answers > why does Java not have block scoped variable declarations? 6

void foo(){
    int a = 0;
    for(int i = 0; i < 10; ++i){
        int a = 1; //re-define a here.
    }

}

However, this fragment does not work in Java. It reports "repeated local variable a". Does it mean that the Java variable has no block range?

Solution

Java variables do have a block scope, but if you notice that int is already defined in the scope

  { 
     int a = 0;
      {
       {
        } 
      }




   }

All child ranges are within the top curly bracket Therefore, you will receive duplicate variable errors