Web Reference: Jan 16, 2026 · This blog demystifies why this happens and provides actionable solutions to print Unicode characters correctly in Java. We’ll cover common causes of the `?` issue, step-by-step fixes for console and file output, and direct rendering methods to ensure characters render as intended. Jul 3, 2017 · In order to deal with Unicode characters (16-bit Unicode character), you have to use character based stream i.e. PrintWriter. PrintWriter supports the print ( ) and println ( ) methods. Thus, you can use these methods in the same way as you used them with System.out. In this tutorial, we will explore how to work with Unicode in Java through practical examples. You will learn how to represent Unicode characters in your code, manipulate them programmatically, and handle Unicode input and output operations.
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