Java 大小写转换

public class CaseConversion {
	/**
	 * @param character: a character
	 * @return: a character
	 */
	public char lowercaseToUppercase(char character) {
		// write your code here
		if (character >= \'a\' && character <= \'z\') {
			character = (char) (character - 32); // 将小写字母转换为大写字母
		} else {
			character = (char) (character + 32); // 将大写字母转换为小写字母
		}
		return character;
	}

	public static void main(String[] args) {
		CaseConversion s = new CaseConversion();
		System.out.println("B------>" + s.lowercaseToUppercase(\'B\'));
		System.out.println("n------>" + s.lowercaseToUppercase(\'n\'));
	}
}

点击查看结果

“`
B——>b
n——>N
“`

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