Java.io.FileInputStream.close() Method
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Description
The java.io.FileInputStream.close() closes this file input stream and releases any system resources associated with the stream.
Declaration
Following is the declaration for java.io.FileInputStream.close() method −
public void close()
Parameters
NA
Return Value
The methods does not return any value.
Exception
IOException − If any I/O error occurs.
Example
The following example shows the usage of java.io.FileInputStream.close() method.
package com.tutorialspoint; import java.io.IOException; import java.io.FileInputStream; public class FileInputStreamDemo { public static void main(String[] args) throws IOException { FileInputStream fis = null; int i = 0; char c; try { // create new file input stream fis = new FileInputStream("C://test.txt"); // read byte from file input stream i = fis.read(); // convert integer from character c = (char)i; // print character System.out.println(c); // close file input stream fis.close(); System.out.println("Close() invoked"); // tries to read byte from close file input stream i = fis.read(); c = (char)i; System.out.println(c); } catch(Exception ex) { // if an I/O error occurs System.out.println("IOException: close called before read()"); } finally { // releases all system resources from the streams if(fis!=null) { fis.close(); } } } }
Assuming we have a text file c:/test.txt, which has the following content. This file will be used as an input for our example program −
ABCDEF
Let us compile and run the above program, this will produce the following result −
A IOException: close called before read()
java_io_fileinputstream.htm
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