/*
* Copyright ( c ) 1998 , 2010 , Oracle and / or its affiliates . All rights reserved .
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER .
*
* This code is free software ; you can redistribute it and / or modify it
* under the terms of the GNU General Public License version 2 only , as
* published by the Free Software Foundation .
*
* This code is distributed in the hope that it will be useful , but WITHOUT
* ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
* accompanied this code ) .
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA .
*
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*/
/* @test
@ bug 4101707
@ summary Test if fill ( ) will behave correctly at EOF to
allow file to grow .
*/
import java.io.*;
public class GrowAfterEOF {
public static void main(String[] args) throws Exception {
File input = new File("." , "TestEOFInput.txt" );
RandomAccessFile rf = new RandomAccessFile(input, "rw" );
try {
BufferedReader r = new BufferedReader
(new InputStreamReader(new FileInputStream(input)));
try {
// write something
rf.writeBytes("a line" );
// read till the end of file
while (r.readLine() != null );
// append to the end of the file
rf.seek(rf.length());
rf.writeBytes("new line" );
// now try to read again
boolean readMore = false ;
while (r.readLine() != null ) {
readMore = true ;
}
if (!readMore) {
input.delete ();
throw new Exception("Failed test: unable to read!" );
} else {
input.delete ();
}
} finally {
r.close();
}
} finally {
rf.close();
}
}
}
Messung V0.5 in Prozent C=96 H=92 G=93
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-10-11)
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