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Asked: 2026-05-13T16:55:49+00:00

I have a PC notebook running Win Vista, when I first bought it, certain

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I have a PC notebook running Win Vista, when I first bought it, certain Chinese fonts won’t show up, I could only see rectangles, but I played with the control setting for a while, changed some properties, and now it shows Chinese fonts correctly, but I don’t remember what I did.

Now some of my programs displays both English and Chinese, something like this : “Enter | 输入” (The Chinese here also means enter), but if a user doesn’t have Chinese fonts installed properly on his machine, he will see something like this : “Enter | [][]”, my question is : in Java how to detect if those characters will show up correctly on a certain machine, if not, just display “Enter”, if it is, show “Enter | 输入”.

Frank

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1 Answer

  1. Editorial Team

    java.awt.GraphicsEnvironment.getAvailableFontFamilyNames() can give you a list of the available fonts installed on the current system. You could also use java.awt.GraphicsEnvironment.getAllFonts() to get java.awt.Font objects.

    Then, you can use java.awt.Font.canDisplay(int) to check whether a Unicode character can be displayed in that font (where the int is the integer representation of the multibyte character).

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