ex2_7.java

Introduction to java programming 一书中所有编程练习部分的源码

public class EX2_7 {

    public static void main(String[] args) {
        int offset = (int)'a' - (int)'A';
        
        char uppercase = 'X';
        char lowercase = (char)((int)uppercase + offset);
        System.out.println(lowercase);
    }
}