Java中的FilterOutputStream 简介_动力节点Java学院整理

package java.io;public class FilterOutputStream extends OutputStream {  protected OutputStream out;  public FilterOutputStream(OutputStream out) {    this.out = out;  }  public void write(int b) throws IOException {    out.write(b);  }  public void write(byte b[]) throws IOException {    write(b, 0, b.length);  }  public void write(byte b[], int off, int len) throws IOException {    if ((off | len | (b.length - (len + off)) | (off + len)) < 0)      throw new IndexOutOfBoundsException();    for (int i = 0 ; i < len ; i++) {      write(b[off + i]);    }  }  public void flush() throws IOException {    out.flush();  }  public void close() throws IOException {    try {     flush();    } catch (IOException ignored) {    }    out.close();  }}