Archive:Java File IO - Revision history

wikademia>Wikademia: moved Java File IO to Archive:Java File IO

2009-06-12T09:13:52Z

← Older revision	Revision as of 09:13, 12 June 2009
(No difference)

2009-04-19T00:47:42Z

← Older revision		Revision as of 00:47, 19 April 2009
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	<pre>f.exists()</pre>		<pre>f.exists()</pre>
	This will return a boolean.		This will return a boolean.
			{{ntnes}}
	To check if it is a file or directory:		To check if it is a file or directory:
	<pre>f.isFile()		<pre>f.isFile()

2009-04-08T04:15:11Z

10 revisions

← Older revision	Revision as of 04:15, 8 April 2009
(No difference)

2009-04-03T17:30:21Z

FileWriter

← Older revision		Revision as of 17:30, 3 April 2009
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	It is as simple to write. After you create a FileWriter just use:		It is as simple to write. After you create a FileWriter just use:
	<pre>		<pre>
	String s = "Testing"		String s = "Testing";
	//INITIALIZE FileWriter fw		//INITIALIZE FileWriter fw
	fw.write(s);		fw.write(s);
Line 36:		Line 36:

	=== FileOutputStream ===		=== FileOutputStream ===

	== File Input ==		== File Input ==

2007-11-16T02:10:34Z

added scanner section

@@ Line 37: / Line 37: @@
 === FileOutputStream ===
 == File Input ==
 [[Category:Java]]

2007-04-24T21:44:17Z

← Older revision		Revision as of 21:44, 24 April 2007
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	File input/output is quite similar to the System.in and System.out that you already have begun using.		File input/output is quite similar to the System.in and System.out that you already have begun using In Java, files can be represented by the class java.io.File.

	== Files ==		== Files ==

2007-04-24T20:50:57Z

← Older revision		Revision as of 20:50, 24 April 2007
Line 1:		Line 1:
	File ~~Input~~/~~Output~~ is similar to the System.~~out~~ and System.in that you already have begun using. ~~The only difference is that you read from a file.~~		File input/output is quite similar to the System.in and System.out that you already have begun using.
	=Files=
			== Files ==
	Files are another type of variable. You can make a file like this:		Files are another type of variable. You can make a file like this:
	<pre>File f = new File("test.txt")</pre>		<pre>File f = new File("test.txt")</pre>
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	For a full list of methods you can use, go to http://java.sun.com/j2se/1.4.2/docs/api/java/io/File.html		For a full list of methods you can use, go to http://java.sun.com/j2se/1.4.2/docs/api/java/io/File.html

	=File Output=		== File Output ==
	To write to a file, you can use a FileWriter or a FileOutputStream.		To write to a file, you can use a FileWriter or a FileOutputStream.
	==FileWriter==		==FileWriter==
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	Of course, you should only use this when you already have a character array.		Of course, you should only use this when you already have a character array.

	==FileOutputStream==		=== FileOutputStream ===
	=File Input=		== File Input ==
	[[Category:Java]]		[[Category:Java]]

2007-01-09T21:50:17Z

2006-11-30T00:09:11Z

Files

← Older revision		Revision as of 00:09, 30 November 2006
Line 7:		Line 7:
	This will return a boolean.		This will return a boolean.

	To check if it a file or directory:		To check if it is a file or directory:
	<pre>f.isFile()		<pre>f.isFile()
	f.isDirectory()		f.isDirectory()

2006-11-26T17:41:02Z

FileWriter

← Older revision		Revision as of 17:41, 26 November 2006
Line 27:		Line 27:
	fw.write(s);		fw.write(s);
	</pre>		</pre>
			FileWriter can also write in other formats. Using char[]:
			<pre>
			Char[] charAr=s.toCharArray();//A method in class String
			fw.write(charAr);
			</pre>
			Of course, you should only use this when you already have a character array.

	==FileOutputStream==		==FileOutputStream==
	=File Input=		=File Input=