看到有人问如图的程序,就去写了几行代码,顺便复习一下条件语句和ASCII码
1 import java.util.Scanner; 2 public class test1 { 3 4 public static void main(String[] args) 5 { 6 Scanner sc = new Scanner(System.in); 7 System.out.print("输入一个ASCII数值:"); 8 int ascii = sc.nextInt(); 9 sc.close(); 10 char ch = (char)ascii; 11 //在‘a’~‘z’转成‘A’~‘Z’ 12 if(ch >= 'a' && ch <= 'z') 13 { 14 System.out.println((char)(ch-32)); 15 } 16 //在‘A’~‘Z’转成‘a’~‘z’ 17 else if(ch >= 'A' && ch <= 'Z') 18 { 19 System.out.println((char)(ch+32)); 20 } 21 //在‘0’~‘9’输出0~9 22 else if(ch >= '0' && ch <= '9') 23 { 24 System.out.println(ch); 25 } 26 //输出“+ - * /” 27 else if(ch == '+' || ch== '-' || ch == '*' || ch == '/') 28 { 29 System.out.println("属于算术运算符"); 30 } 31 //输出“非法字符” 32 else 33 { 34 System.out.println("非法字符"); 35 } 36 } 37 }
作者:耑新新,发布于 博客园
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