Java FileInputStream.finalize()方法範例

Java FileInputStream.finalize()方法範例

FileInputStream的FileInputStream.finalize()方法具有以下語法。

protected void finalize()   throws IOException

範例

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

import java.io.FileInputStream;

public class Main extends FileInputStream {
  public Main() throws Exception {
    super("C://test.txt");
  }

  public static void main(String[] args) throws Exception {
    Main fisa = new Main();

    // read byte from file input stream
    int i = fisa.read();

    // converts int to char// From:  ｗWw . y  I IB aI.c O  M
    char c = (char) i;
    System.out.println(c);

    // finalize method invoked
    fisa.finalize();

    // method revoked after finalize metod
    i = fisa.read();
    c = (char) i;
    System.out.println(c);

  }
}