Character

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layout: default title: Character

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A Character object encapsulates a single Unicode char value.

Constants

• MIN_VALUE: \u0000

• MAX_VALUE: \uffff

Methods

• Character has a large number of boolean methods for testing char values.

char c = '\u03a6'; // uppercase Greek phi
if ( Character.isUpperCase(c) ) {
  System.out.println("Uppercase letter: " + c);
}

Caching

Character, like the integer-type wrapper classes, maintains an internal cache of important char wrapper objects.

• The cached values are the original ASCII characters, from 0 to 127 (nul to del, \u0000 to \u007f).

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