How do I read a text file?
Date: 2010-09-16. Category: Java I/O examples. Hits: 404K time(s).
The code shown below is an example how to read a text file. This program will read a file called test.txt and shown its content.
package org.kodejava.example.io;
import java.io.*;
public class ReadTextFileExample {
public static void main(String[] args) {
File file = new File("test.txt");
StringBuilder contents = new StringBuilder();
BufferedReader reader = null;
try {
reader = new BufferedReader(new FileReader(file));
String text = null;
// repeat until all lines is read
while ((text = reader.readLine()) != null) {
contents.append(text)
.append(System.getProperty(
"line.separator"));
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (reader != null) {
reader.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
// show file contents here
System.out.println(contents.toString());
}
}
You can also try to use the following example to read a file. How do I read text file content line by line using commons-io?.