How to use bytearrayinputstream in Java?

2 years ago
Noah Thompson
1 minute

ByteArrayInputStream is a subclass of InputStream in Java that is used to process a byte array as an input stream.

Here are some common uses of ByteArrayInputStream:

  1. Create a ByteArrayInputStream object and initialize the byte array.
byte[] byteArray = {1, 2, 3, 4, 5};
ByteArrayInputStream bis = new ByteArrayInputStream(byteArray);
  1. Read data from a byte array.
int data;
while ((data = bis.read()) != -1) {
    // 处理读取到的数据
    System.out.println(data);
}
  1. Create a new byte array input stream based on the specified offset and length.
int offset = 1;
int length = 3;
ByteArrayInputStream bis = new ByteArrayInputStream(byteArray, offset, length);
  1. Combine ByteArrayInputStream with other stream objects, such as BufferedInputStream or DataInputStream.
BufferedInputStream bis = new BufferedInputStream(new ByteArrayInputStream(byteArray));
DataInputStream dis = new DataInputStream(new ByteArrayInputStream(byteArray));
  1. Close the ByteArrayInputStream.
bis.close();

Here are some basic usage examples of ByteArrayInputStream. Depending on your specific needs, you can further utilize other methods of the ByteArrayInputStream class to meet your requirements.

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