Java 大小写转换

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