我正在编写一个应该读取简单文本文件的程序,并输出该.txt文件中所有字母的列表,并使用最常用的字母最不常用的字母。可以在.txt文件中以字母读取的代码
我完成了一个工作的Java程序的编码工作,它要求输入文件名并输出文件中的文本。但我不确定如何去输出这些字母的列表。我不确定的是读者类中的哪些方法(如果有的话)可以使用读取.txt文件中的每个字母。任何帮助,将不胜感激!
这是当前的代码:
// Here I import the Bufered Reader and file reader Libraries
// The Buffered Reader library is similar to Scanner Library and
// is used here to read from a text file. File reader will allow
// the program to access windows file system, get the text file
// and allow the Buufered Reader to read it in.
import java.io.BufferedReader;
import java.io.FileReader;
import java.util.Scanner;
public class TextFileReaderApp
{
// I added "throws exception" in case there is an an error in the
// main method, throw an exception, so it can prevent further
// errors from occuring if java doesnt know the main methods going
// to throw an error.
public static void main(String[] args) throws Exception
{
// below I diplay a welcome messgae to the user
System.out.println();
System.out.println("Welcome to the Text File Reader application!");
System.out.println();
// Below I create an instance of the Scanner class to get
// input from the user.
Scanner userInput = new Scanner(System.in);
String selection = "y"; //this is the string variable that's used in
//the while loop to continue the program.
// Below I created a while loop that continues the program if the user
// keeps selecting y as their selecion
while (selection.equalsIgnoreCase("y"))
{
// this line of code is supposed to ask the user for text file name under
// the C:/ directory and must not be hidden in any foler.
System.out.print("Please enter the name of the .txt file: C/");
FileReader file = new FileReader("C:/" + userInput.next());
// file object is used as a parameter in buffered reader.
BufferedReader textReader = new BufferedReader(file);
// below I create and initialize an object of type string called text that will
// store whats inside of the text file.
String text = "";
// I use the readLine statement to read line after line of the text.
// Once it has read everything it will return null.
String lineText = textReader.readLine();
// code below is a test for me to see if the code above works and is able to read
// the text inside the file and output it.
while(lineText != null)
{
// this reads the text line for line and ads it to the text variable for output.
text = text + lineText + "\n";
lineText = textReader.readLine();
}
System.out.println(text);
}
// These 3 code lines ask the user if he/she would like to continue with the program.
System.out.println();
System.out.print("Continue using the Text File Reader? (y/n): ");
choice = user_input.next();
System.out.println();
}
}
您将要阅读java中Reader类的javadoc。 – jtahlborn
这是一系列声明,要求我们为您编写代码,而不是真正的问题。 – redFIVE
不,我不指望任何人为我编写代码,但我只是想知道读者类中可以读取文本中单词的字母的方法。我可以处理除此之外的所有事情,但我只是想澄清。 – KillaFrostByte