Question

编写程序,将小写字母a转换为大写字母A

编写程序,将小写字母a转换为大写字母A

Answer 1

/*现在任何一个小写字母都行*/ import java.util.Scanner; public class ChangeCase { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.println("请输入小写字母："); String lower = sc.next(); String upper = lower.toUpperCase(); System.out.println(upper); }

Answer 2

#include int main(){ char ch; printf("Please input A~Z: "); scanf("%c", &ch); if(ch >= 'A' && ch