Java FilterOutputStream.flush()方法範例

2019-10-16 22:13:43

FilterOutputStream.flush()方法範例

FilterOutputStream.flush()具有以下語法。

public void flush()  throws IOException

範例

在下面的程式碼中展示了如何使用FilterOutputStream.flush()方法。

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FilterOutputStream;
import java.io.OutputStream;

public class Main {
  public static void main(String[] args) throws Exception {

    OutputStream os = new FileOutputStream("C://test.txt");
    FilterOutputStream fos = new FilterOutputStream(os);

    fos.write(65);

    // forces byte contents to written out to the stream
    fos.flush();

    // create output streams
    FileInputStream fis = new FileInputStream("C://test.txt");

    // read byte
    int i = fis.read();

    // convert integer to characters
    char c = (char) i;

    System.out.print("Character read: " + c);
    fos.close();
    fis.close();
  }
}