错误：squareFeet无法解析为变量

Question

我是Java编程的新手，这是我一直坚持的问题。

  public static double Totalwallspace( int NumberofRooms )

  {

  double squarefeet;    
  double totalSquareFeet = 0;

  Scanner scanner = new Scanner(System.in);

  for( int currentRoom = 1; currentRoom <= NumberofRooms; currentRoom++){

  System.out.println("Please enter the square feet of the wall space in room: " + currentRoom);

  double squareFeet = scanner.nextDouble();

  scanner.close();

  totalSquareFeet = totalSquareFeet + sqaureFeet;

   }
   return totalSquareFeet;
}

每次我尝试编译它时，总是不断地告诉我以下消息：squareFeet无法解析为变量。

Answer 1

是的，Scanner应该关闭，try with resource是最好的方法：

public static double Totalwallspace(int NumberofRooms) {
    try (Scanner scanner = new Scanner(System.in)) {
        double totalSquareFeet = 0;

        for (int currentRoom = 1; currentRoom <= NumberofRooms; currentRoom++) {
            System.out.println("Please enter the square feet of the wall space in room: " + currentRoom);
            totalSquareFeet += scanner.nextDouble();
        }

        return totalSquareFeet;
    }
}