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I need to convert a byte array to ByteArrayOutputStream so that I can display it on screen.
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Write Bytes to ByteArrayOutputStream Since the Java ByteArrayOutputStream class is a subclass of the Java OutputStream class, you write bytes to it using the same write methods that OutputStream has: write(int byteToWrite) write(byte[] bytesToWrite, int offset, int length)
In order to convert a byte array to a file, we will be using a method named the getBytes() method of String class. Implementation: Convert a String into a byte array and write it in a file. Example: Java.
ByteArrayOutputStream class creates an Output Stream for writing data into byte array. The size of buffer grows automatically as data is written to it. There is no affect of closing the byteArrayOutputStream on the working of it's methods. They can be called even after closing the class.
Read the image using the read() method of the ImageIO class. Create a ByteArrayOutputStream object. Write the image to the ByteArrayOutputStream object created above using the write() method of the ImageIO class. Finally convert the contents of the ByteArrayOutputStream to a byte array using the toByteArray() method.
byte[] bytes = ....; ByteArrayOutputStream baos = new ByteArrayOutputStream(bytes.length); baos.write(bytes, 0, bytes.length); Method description:
Writes len bytes from the specified byte array starting at offset off to this byte array output stream.
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