Java method to read txt files

Java reads the contents of the txt file. It can be understood as follows:

• First get a file handle. File file = new File(); file is the file handle. The two of them have a telephone network connection. Next, you can start making calls.
• Read Party A's information through this line: new FileInputStream(file) Currently, this information has been read into memory. Next, it needs to be interpreted as something that Party B can understand
• Since you have used FileInputStream(). Then the corresponding method needs to be used to interpret the data loaded in the memory just now.
• After the interpretation is completed, you need to output it. Of course, it needs to be converted into data that IO can recognize. Then you need to call the BufferedReader() method that reads bytecode. At the same time, use the readline() method of bufferedReader() to read each line of data in the txt file.

 package com.campu; import java.io.BufferedInputStream;import java.io.BufferedReader;import java.io.File;import java.io.FileInputStream;import java.io.InputStreamReader;import java.io.Reader; /** * @author coder Xiaojiang* H20121012.java * 2012-10-12 11:40:21 pm */public class H20121012 { /** * Function: Java reads the content of the txt file* Steps: 1: Get the file handle first* 2: Obtaining the file handle is used to input a bytecode stream, and the input stream needs to be read * 3: After reading the input stream, the generated byte stream needs to be read * 4: Output of one line by one. readline(). * Note: What needs to be considered is exceptions* @param filePath */ public static void readTxtFile(String filePath){ try { String encoding="GBK"; File file=new File(filePath); if(file.isFile() && file.exists()){ //Judge whether the file exists InputStreamReader read = new InputStreamReader( new FileInputStream(file),encoding);//Consider the encoding format BufferedReader bufferedReader = new BufferedReader(read); String lineTxt = null; while((lineTxt = bufferedReader.readLine()) != null){ System.out.println(lineTxt); } read.close(); }else{ System.out.println("Specified file cannot be found"); } } } catch (Exception e) { System.out.println("Error reading file content"); e.printStackTrace(); } } public static void main(String argv[]){ String filePath = "L://Apache//htdocs//res//20121012.txt";// "res/"; readTxtFile(filePath); } }

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