Reading a Content of a file in java

import java.io.*;

public class FileReaderDemo
{
public static void main(String args[]) throws FileNotFoundException,IOException
{
File file1=new File("Demo.txt"); // or u can use file name with path eg. D:\\Demo\\Demo.txt
BufferedReader in = new BufferedReader(new FileReader(file1));
String str;
while ((str = in.readLine()) != null) {
System.out.print(str);
}
in.close();
}

}

Save above contents in a file called FileReaderDemo.java