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System.out.println((char)-1) printing question mark

 
Greenhorn
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Hello,

In my program I write:

System.out.println((char)-1);

And the console output is ?.....Can anybody tell me why?
Is this because Java don't recognize this character, so just transforms it to ? mark?
 
Greenhorn
Posts: 24
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Yes
You are right. If Java doesn't recognize the code, it will print '?'
 
Azuritul Wu
Greenhorn
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Many thanks for your reply...
 
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