java - 私有(private)访问？ java

Question

我遇到了与变量“totalFloat”有关的私有(private)访问错误。然而，我一直在引用和使用同一个类中的方法，没有出现这个问题。

在这种情况下有没有通用的方法来解决私有(private)访问错误？

public static void writeHtmlFile() {
  double contentsChangeDraw;

  String ChangeDrawer = "ChangeFloat.html";
  try {
    PrintWriter outputStream = new PrintWriter(ChangeDrawer); 
    contentsChangeDraw=cd.getTotalFloat(totalFloat); 

    // totalFloat has private access in ChangeDrawer, which means I am
    // unable to use the method to calculate the array that needs to be written  

    outputStream.println(contentsChangeDraw); 
    outputStream.close(); 
    System.out.println("The contents of the ChangeDrawer have been written to a file");
  } catch (FileNotFoundException e) {
    e.printStackTrace();      
  }       
}

Answer 1

我敢打赌totalFloat有这样的声明:

private int totalFloat; // or double, or boolean, or something else

您无法从静态方法访问它，因为它是成员变量。做到这一点

private static int totalFloat; // or double, or boolean, or something else

访问它(或将您的方法writeHtmlFile()更改为非静态)。