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Which of the following declarations correctly initializes a `char` variable with the Unicode value corresponding to the Greek letter omega (`Ω`)?

  1. char c = '\u03A9';

  2. char c = 'Ω';

  3. char c = 0x03A9;

  4. char c = "\u03A9";

  5. char c = Unicode(0x03A9);

Show answer & explanation

Correct answer

char c = '\u03A9';

Explanation

Unicode escape sequences in Java use the `\u` prefix followed by exactly four hexadecimal digits. `\u03A9` is the correct Unicode escape for omega. Assigning it to a `char` is valid because `char` in Java is a 16-bit unsigned integer representing a Unicode code point.

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