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Use the Character.isLetter(char letter) method.
// This line will return true
Character.isLetter('a');
// This line will return false
Character.isLetter('4');
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∙ 14y ago
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' ' would be the character for a space in Java.
Can a character in java apply in JOptionPane?
no!!
What is java string?
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Which of these methods of string class is used to obtain character at specified index?
You don't specify "these methods", but chances are what you're looking for is the charAt method
