Is File handling in Java Swing possible

[Vivan]

I am looking for how to open a file and save a file in Java. My problem, is that I do not how SIAS insert a code in my code already prepared. The Applet class provides everything necessary for image playback:

Image java.applet.Applet.getImage(URL url); Image java.applet.Applet.getImage(URL url, String name);

Please help.

[MindSpace]

The DOM API to manipulate XML files easily using their tree structure. This example covers the following:
* creating an XML document from scratch;
* writing an XML document to disk;
* reading an XML document into memory from a file;
* tree parsing an XML document loaded into memory.

[Zecho]

Java provides a whole class to read and write files. These classes are grouped in a package. For files, this is the package java.io. To use the classes in a package, you need to "import", using the beginning of the file . java, the keyword import, followed by the package name, then a dot and a star. Thus, to import the classes of the package java.io, we begin the file:

import java.io. * public class

Once this line added, you have access to classes for manipulating Java files. Among these classes, two classes of interest here: FileReader and FileWriter, which we will respectively permettrent to read and write files.

[opaper]

To read a file, so the class FileReader that we use. More precisely, it creates a new object of this class for each file you want to read, using the constructor that takes a parameter file name to read. The creation of this object to the effect of opening the file read. To open the file foo.txt in reading, one can for example do:

FileReader fr = new FileReader ("foo.txt");

[Reegan]

There are two ways to access the files: sequentially, whereas in a file as a stream, and randomly (random), which can move anywhere in the file in any order. In C, these two ways of doing things are mixed, but in Java we can clearly distinguish the sequential access mode that applies to data streams (streams), and random fashion, mainly implemented through the RandomAccessFile class.

[absolute55]

Once the file is opened, it uses the object created to read characters in the file, using the method read () class FileReader. Note, however, this method does not return a character, but an integer that represents the code character or the value -1 if we reached the end of the file. It is therefore necessary to store the character code read in an integer, test whether or not the integer is -1, then convert character through the conversion (float).