题:编写程序,从键盘接收一个字符串,对字符串中的字母进行大小写互转(大写字母转成小写,小写字母转成大写)。
代码:
public class Demo
{
public static void mian(String[] agrs) throws IOException
{
BufferedReader bufr =
new BufferedReader(new InputStreamReader(System.in));
帅哥看看这个怎么样
public class Test5
{
public static void main(String[] agrs) throws IOException
{
BufferedReader bufr =
new BufferedReader(new InputStreamReader(System.in));