Unable to convert from string to byte array

Question

I'm making a wordcount program and i want to write the total number of words at the end of the file. As i'm using FileOutputStream i've to convert my string to Byte array. But i'm getting a compile time error. Please help me out with this.

Byte[] msg;
msg="Total Number of words are: ".getBytes();

and i'm getting compile time error like this:

error: incompatible types: byte[] cannot be converted to Byte[]

and also i'm using write method and passing a byte arraylike this:

fout.write(msg);

where fout is object of fileoutputstream opened in append mode. i'm getting error like this:

error: no suitable method found for write(Byte[]).

I've imported java.io.*;

Raktim Biswas · Accepted Answer · 2016-06-26 08:56:53Z

3

You are doing a noob mistake. You are using Byte[ ] to store the returned bytes from String.getBytes() method. The getBytes() method returns a primitive byte array not a byte object. Replace Byte[ ] with byte[ ] on left hand side. It will 100% work.

edited Jun 26, 2016 at 8:56

Raktim Biswas

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answered Jun 26, 2016 at 8:47

Saurabh Chaturvedi

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1 Comment

Saurabh Chaturvedi Over a year ago

Happy to help :) please accept the answer if it helped you .

Yassin Hajaj · Accepted Answer · 2016-06-26 08:48:23Z

1

There is a difference between the primitive type byte and the wrapper class Byte

You should change your code to byte[] msg = ... since String#getBytes() returns an array of byte primitives

answered Jun 26, 2016 at 8:48

Yassin Hajaj

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