How to read a file content in a ordinary java program

Please help me is there is any method is available to read the content of the file.I am asking in pure java not in the servlets.Guys please help me.I got structed here

Reading a text file in the systems character encoding: use the class java.io.FileReader. You can wrap a BufferedReader around it to get better performance (and a simple way to read lines)
Reading a text file in another character encoding: use FileInputStream and convert it to a reader with:
InputStreamReader reader = new InputStreamReader(fileStream, encoding);
where encoding is the character encoding as a String (like "Cp850" or "UTF-16LE"). Again, you can wrap a BufferedReader around that reader.
Reading a binary file: open a FileInputStream to the file and just read the bytes from it. You can use BufferedInputStream for better performance and DataInputStream to get a simple way to read primitive types like double and char.
Please help me is there is any method is available to
read the content of the file.I am asking in pure java
not in the servlets.Guys please help me.I got structed
hereAren't servlets pure Java?

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