在Java中将小写字母快速转换为大写字母

//将小写字母快速转变为大写字母public class UpperConversion {public static void main(String[] args) {char small = 'c';char big =(char) (small ^ 32);System.out.println(big);char small2 = 'h';char big2 = (char)(big^32);System.out.println(big2);}}