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The simplest way to write text to a file requires us to use PrintWriter class from the standard package java. The class PrintWriter has the familiar print and println methods we have been using for writing to the console. The following program writes the name of four oceans to the text file. During program execution, various things can happen — For example, suppose you create a PrintWriter object and pass the name of a file to its constructor The PrintWriter object attempts to create the file, but unexpectedly the disk is full and the file cannot be created.
If such things happen, we say that an exception has occurred. If an exception occurs in a method, then the method should either handle the exception or throw it for the calling environment to handle. In next chapter you will learn all about exceptions, but for now, we will simply allow our methods to throw any exceptions that might occur.
For example our main method should look like this :. When above program is compiled and run output is stored in text file oceans. But I don't know, how it affect in perfomance versus other methods, but it is a little simpler to write. This is the method name in the javadoc im reffering to, incase if the link doesn't take you automatically. How are we doing?
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Active 6 years, 7 months ago. Viewed 83k times. How to write int to text file using Writer? Sergey Metlov Sergey Metlov Add a comment. Active Oldest Votes. You have to write String Why do I have to make the int an object type of Integer? Dosent java already know that this is an int value and therefore should be able to translate that to string?
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