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Java – convert InputStream to InputStreamReader

This post demonstrates how to convert a file to InputStreamReader.

From FileInputStream

From FileInputStream, we need to convert it to InputStreamReader by pass the object to its constructor.

You can even create an InputStreamReader object that uses a named charset, e.g., “UTF-8”.

Using ClassLoader

The file has to be in the classpath. You may test it more easily with Maven by putting the file in src/main/resource directory.

From FileReader

Yes, you can directly create InputStreamReader object using FileReader. This is the straight-forward solution.

Karl San Gabriel

Karl San Gabriel

Java and Enterprise Technologies Expert