/*
 * 文件名:ex_6_1_7.java
 * 說  明:大小寫轉換
 */
class ex_6_1_7 {
	public static void main(String args[])
	{
		String s = "This is a test.";
		System.out.println("Original: " + s);
		String upper = s.toUpperCase();
		String lower = s.toLowerCase();
		System.out.println("Uppercase: " + upper);
		System.out.println("Lowercase: " + lower);
	}
}