Java 在这种情况下,我如何拨打超级班级电话?

Java 在这种情况下,我如何拨打超级班级电话?,java,superclass,super,Java,Superclass,Super,我正试图弄清楚在以下情况下如何进行超类调用 正如您将在下面看到的,我扩展的类的子类在其构造函数中只有一个参数,而超类有两个参数 下面是我的代码: import java.io.*; import java.util.*; public class DirectorySize extends DirectoryProcessor { /* Dan Czarnecki October 29, 2013

我正试图弄清楚在以下情况下如何进行超类调用

正如您将在下面看到的,我扩展的类的子类在其构造函数中只有一个参数,而超类有两个参数

下面是我的代码:

    import java.io.*;
    import java.util.*;

    public class DirectorySize extends DirectoryProcessor
    {
        /*
        Dan Czarnecki
        October 29, 2013

        Class variables:
            private HashMap<File, DirectoryStatistics> directory
                A HashMap object that will contain the files and folders
                within a directory

        Constructors:
            public DirectorySize(File startingDirectory) throws FileNotFoundException
                Creates a DirectorySize object, takes in a pathname (inherited from DirectoryProcessor class,
                and has a single hashmap of a DirectoryStatistics object to hold the files and folders
                within a directory

        Methods:
            public void processFile(File file)
                A method that searches for all the files and folders
                within a directory and calculated the total size
                for each of them
            public void run()
                Calls the processFile() method and prints out
                the files and folders (along with their sizes)
                in the directory
            public String toString()
                Returns each element in the directory Vector


        Modification History
            October 29, 2013
                Original version of class
                Implemented run() and processFile() methods
            October 30, 2013
                Added implementation of FileFilter to processFile() method
        */
        private HashMap<File, DirectoryStatistics> directory;

        public DirectorySize(File startingDirectory) throws FileNotFoundException
        {
            super(startingDirectory);
            directory = new HashMap <File, DirectoryStatistics>();
        }


        public void processFile(File file, FileFilter fileFilter) throws FileNotFoundException
        {
            DirectoryStatistics parent;
            int index;
            File parentFile;
            boolean find;


            parentFile = file.getParentFile();
            parent = new DirectoryStatistics(parentFile);
            find = directory.containsValue(parent);

            if(find)
            {
                directory.put(parentFile, parent);
                directory.get(parentFile).setSizeInBytes(file.length());
                directory.get(parentFile).incrementFileCount();
            }


            if(find)
            {
                directory.get(find).addToSizeInBytes(file.length()); //increments the total size of the directory
                directory.get(find).incrementFileCount(); //increments the number of files in the directory
            }


        }

        public void run() throws FileNotFoundException
        {
            File file;
            file = directoryLister.next();


            while(file != null) //the following will be called when the File object is not null
            {
                processFile(file, fileFilter);
                file = directoryLister.next();
            }

        }

        public String toString()
        {
            Set<File> parentFile = directory.keySet();
            File[] parentFileArray = parentFile.toArray(new File[0]);

            String str; //creates a new string that will hold the file or directory name
            str = "";

            for(int i = 0; i < parentFileArray.length; i++)
            {
                str = str + directory.get(parentFileArray[i]).toString();
            }

            return str;
        }
    }
import java.io.*;

abstract public class DirectoryProcessor extends DirectoryLister
{
    /*
    Dan Czarnecki
    October 14, 2013

    Class variables:
        private DirectoryLister directoryLister
            A variable of type DirectoryLister that will list all the directories from a given pathname

    Constructors:
        public DirectoryProcessor(File startingDirectory) throws FileNotFoundException
            Makes a super call to the startingDirectory variable, creates a new DirectoryLister object

    Methods:
        abstract public void processFile(File file, FileFilter fileFilter)
            This abstract method's function is implemented in the TotalFileSize class to process each file within a directory and return the total size of them

        public void run()
            Basically takes the functionality what was originally done with our FileLister and DirectoryLister class (within the driver class)
            but has now moved to its own method

    Modification History:
        October 14, 2013
            Original version of class

        October 16, 2013
            Class and processFile() method have been made abstract

        October 30, 2013

    */

    public DirectoryLister directoryLister;
    public FileFilter fileFilter;

    public DirectoryProcessor(File startingDirectory, FileFilter fileFilter) throws FileNotFoundException
    {
        super(startingDirectory);
        directoryLister = new DirectoryLister(startingDirectory);
        fileFilter = this.fileFilter;
    }

    abstract public void processFile(File file, FileFilter fileFilter) throws FileNotFoundException;


    public void run() throws FileNotFoundException
    {
        File file;
        file = directoryLister.next();

        while(file != null) //the following will be called when the File object is not null
        {
            processFile(file, fileFilter);
            file = directoryLister.next();
        }

    }
}
import java.io.*;
导入java.util.*;
公共类DirectorySize扩展了DirectoryProcessor
{
/*
丹扎内基
2013年10月29日
类变量:
私有哈希映射目录
包含文件和文件夹的HashMap对象
在目录中
建造商:
public DirectorySize(File startingDirectory)引发FileNotFoundException
创建DirectorySize对象,接受路径名(从DirectoryProcessor类继承),
并且有一个DirectoryStatistics对象的hashmap来保存文件和文件夹
在目录中
方法:
公共void进程文件(文件文件)
搜索所有文件和文件夹的方法
并计算了总大小
对他们每个人来说
公开募捐
调用processFile()方法并打印输出
文件和文件夹(及其大小)
在目录中
公共字符串toString()
返回目录向量中的每个元素
修改历史
2013年10月29日
类的原始版本
实现了run()和processFile()方法
2013年10月30日
在processFile()方法中添加了FileFilter的实现
*/
私有HashMap目录;
public DirectorySize(File startingDirectory)引发FileNotFoundException
{
超级(启动目录);
directory=newhashmap();
}
public void processFile(File File,FileFilter FileFilter)引发FileNotFoundException
{
目录统计;
整数指数;
文件父文件;
布尔查找;
parentFile=file.getParentFile();
父项=新目录统计信息(父项文件);
find=directory.containsValue(父级);
如果(查找)
{
directory.put(parentFile,parent);
get(parentFile).setSizeInBytes(file.length());
directory.get(parentFile.incrementFileCount();
}
如果(查找)
{
directory.get(find).addToSizeInBytes(file.length());//增加目录的总大小
directory.get(find).incrementFileCount();//增加目录中的文件数
}
}
public void run()引发FileNotFoundException
{
文件;
file=directoryLister.next();
while(file!=null)//当file对象不为null时,将调用以下内容
{
processFile(文件,文件过滤器);
file=directoryLister.next();
}
}
公共字符串toString()
{
设置parentFile=directory.keySet();
文件[]parentFileArray=parentFile.toArray(新文件[0]);
String str;//创建一个新字符串,该字符串将保存文件或目录名
str=“”;
对于(int i=0;i

在这种情况下,如何进行超类调用?

您的问题不清楚,但是如果您指的是在派生类构造函数中调用
super()
,那么您必须提供所需的两个参数。

如果我理解正确,您是ref