[Java] サイズを指定してダミーファイルを作成

CreateDummyFile.java

public static void createDummyFile(String name, int length) throws IOException {
  RandomAccessFile file = new RandomAccessFile(name, "rw");
  file.setLength(length);
  file.close();
}

@Test
public void testCreateDummyFile() throws IOException {
  File file = new File("work/DummyFile");
  file.delete();
  createDummyFile(file.getPath(), 100);
  assertEquals(100, file.length());
}

http://stackoverflow.com/questions/245251/create-file-with-given-size-in-java