Convert a char to a String

I want to convert a char to a String开发者_如何转开发 in the following way:

char aaa = '\uE001';

I want to obtain a string with the value of "\uE001" so I can use substring(2) to obtain only "E001". Is that possible? Please help

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Well, the character itself is a single character, U+E001. It has the hex value 0xE001. If you want that value as an integer, just use:

int unicodeValue = aaa;

You can then convert that integer value to hex in various ways, if you really need to, for example:

String hex = Integer.toString(unicodeValue, 16);

(That's assuming that overload is available on java-me.)

... or Integer.toHexString if that's available but Integer.toString(int, int) isn't.

Why do you want this value though? If you could clarify that, we may be able to give you more useful advice.

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Integer.toHexString((int)aaa) ;

..and no substring() required.

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This is the simple like that

char aaa = '\uE001';

String s=String.valueOf(aaa);

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You can take any integer value and create a hex string from it like this:

  String s = Integer.toHexString(num);

so Jon Skeet is on the right track. You can:

  char aaa = '\uE001';
  int num = aaa;
  String hex = Integer.toHexString(num); //now contains "e001"