例子
下面的示例演示java.io.DataOutputStream.write(byte [] b,int off,int len)方法的用法。
package com.jc2182;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
public class DataOutputStreamDemo {
public static void main(String[] args) throws IOException {
ByteArrayOutputStream baos = null;
DataOutputStream dos = null;
byte[] buf = {87,64,72,31,90};
try {
// create byte array output stream
baos = new ByteArrayOutputStream();
// create data output stream
dos = new DataOutputStream(baos);
// write to the stream from the source buffer
dos.write(buf, 2, 3);
// flushes bytes to underlying output stream
dos.flush();
// for each byte in the baos buffer content
for(byte b:baos.toByteArray()) {
System.out.println(b);
}
} catch(Exception e) {
// if any error occurs
e.printStackTrace();
} finally {
// releases all system resources from the streams
if(dos!=null)
dos.close();
if(baos!=null)
baos.close();
}
}
}
让我们编译并运行以上程序,这将产生以下结果-