choidemo.java

一系列java小程序

import java.io.*;

public class ChoiDemo
{
    public static void main(String args[ ]) throws IOException
    {
        char c;
        System.out.print("Please input a character:");
        c=(char)System.in.read( );
        if(Character.isUpperCase(c))
            System.out.println("This is a UpperCase Character!");
        if(Character.isLowerCase(c))
            System.out.println("This is a LowerCase Character!");
    }
}