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
```