Reading/Writing with ObjectInputStream

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Hello,
I am having problems using an ObjectInputStream to read from a file. My program uses a File to check whether or not a specific file exists. If it exists my program will attempt to create a FileInputStream for the file and associate an ObjectInputStream with it. It should first read an int, then start reading objects. For some reason it returns an I/O error whenever I attempt to run it.

The file itself is created by using a FileOutputStream and associating an ObjectOutputStream with it. I then write an int and my objects follow that. Any ideas what my problem could be?

Java Syntax (Toggle Plain Text)
	File checkFile = new File("test.tst");
	if(checkFile.exists())
	{
		ObjectInputStream readFile = new ObjetInputStream(new FileInputStream("test.tst");
		int bushels = readFile.readInt();
		BlueBerry firstObject = (BlueBerry) readFile.readObject();
		BlueBerry secondObject = (BlueBerry) readFile.readObject();
		//....
	}
	File checkFile = new File("test.tst");
	if(checkFile.exists())
	{
		ObjectInputStream readFile = new ObjetInputStream(new FileInputStream("test.tst");
		int bushels = readFile.readInt();
		BlueBerry firstObject = (BlueBerry) readFile.readObject();
		BlueBerry secondObject = (BlueBerry) readFile.readObject();
		//....
	}

The test.tst file is written in such a way that it matches this reading format. If anyone can see an error in how this works I would appreciate it or any sample code I could reference! Thanks!

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dmanw100

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Posting Whiz in Training

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May 27th, 2009

Re: Reading/Writing with ObjectInputStream

BlueBerry class must implements java.io.Serializable interface.

adatapost

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Posting Genius

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May 27th, 2009

Re: Reading/Writing with ObjectInputStream

It already does but thanks! I'm assuming that integers can be mixed in the same file as other objects. Is there another way to save that I could try?

dmanw100

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