Java FileInputStream.available()方法範例

2019-10-16 22:14:46

Java FileInputStream.available()方法範例

FileInputStreamFileInputStream.available()方法具有以下語法。

public int available() throws IOException

範例

在下面的程式碼顯示如何使用FileInputStream.available()方法。

import java.io.IOException;
import java.io.FileInputStream;

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

    int i = 0;

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

    // read till the end of the stream
    while ((i = fis.read()) != -1) {
      // available bytes // From: W Ww .Yi I ba I. C o  m 
      int available = fis.available();

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

      System.out.println("Available: " + available);
      System.out.println("Read: " + c);
    }

  }
}